206 Cases Solved. Advancing justice for missing persons, unsolved homicides, unidentified and unclaimed remains.
Serial Killers in the United States
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The following section contains detailed information about serial killers, their crimes, and case details. Some content may be disturbing or graphic, including descriptions of violence, criminal behavior, and sensitive subject matter.
Search our database of Serial Killers in the United States. To see more information on a specific killer and their victims, click on their name.
If you have any information on a killer that is not listed OR see any errors, please let us know!
| Image | Name (click name for info) | Nickname | Born | Range | Victims | Outcome | Caught |
|---|---|---|---|---|---|---|---|
 | Ables, Tony Alvin | December 28, 1954 (age 70) St. Petersburg, Florida, United States | 1970–1990 | 4 (2 convictions) | Death; commuted to life imprisonment | June 4, 1990 | |
 | Abner, Michael Andrew | 1963 (age 60–61) Kentucky, United States | 1983 - 1988 | 3 | Life imprisonment | 1988 | |
 | Abuelazam, Elias | The Flint Serial Slasher, The Flint Serial Stabber | August 29, 1976 (age 48) Ramla, Israel | March 2009 - August 2010 | 1 (convicted), Suspected in 17 further attacks, resulting in another 4 deaths | Life imprisonment without the possibility of parole | August 11, 2010 |
 | Acevedo, Francisco | September 2, 1968 (age 56) Meriden, Connecticut, United States | 1989 - 1996 | 3 | 75 years to life in prison | April 21, 2010 | |
 | Ackroyd, John Arthur | 1976 - 1992 | 1+ | Life imprisonment | |||
 | Adams, Edward J. | 1887 Hutchinson, Kansas, United States | 1920 - 1921 | 7 | Life imprisonment | ||
 | Adams, Michael Elijah | The Train Killer | 2006 - 2011 | 2 - 16+ | 15-to-life imprisonment | ||
 | Adams, Stanley | 1966 (age 57–58) Ohio, United States | 1999 | 3 | 1999 | ||
 | Adorno, George | December 28, 1958 (age 66) New York City, New York, United States | 1974 - 1977 | 3 - 5+ | 15-years-to-life imprisonment | 1977 | |
 | Agrue, John | September 11, 1947 El Paso, Texas, United States | 1966 - 1982 | 3+ | 20-to-50 years imprisonment (Marino murder) | July 15, 1982 (final time) | |
 | Aguilera, Jesus | 1953 (age 71–72) Cuba | 1981 - 1982 | 4 | 2009 | ||
 | Akin, Joseph | The Code Blue Killer | 1956 (age 68–69) Marietta, Georgia, United States | 1-18+ | Life imprisonment | May 31, 1991 | |
 | Albanese, Charles Michael | June 13, 1937 Chicago, Illinois, United States | 1980 - 1981 | 3 | November 18, 1981 | ||
 | Albright, Charles Frederick | The Eyeball Killer, The Dallas Ripper, The Dallas Slasher | August 10, 1933 Amarillo, Texas, United States | December 13, 1990 - March 18, 1991 | 3 | Life imprisonment | March 22, 1991 |
 | Alcala, Rodney James | The Dating Game Killer | August 23, 1943 San Antonio, Texas, United States | 1968 - 1979 | 7 convicted, 8 confirmed, possibly up to 130 | Death | July 24, 1979 |
 | Alexander, Warren Luther | January 12, 1951 (age 73) Diamondhead, Mississippi, United States | 1977 - 1992 | 4+ | March 2022 | ||
 | Alix, Franklin Dewayne | August 6, 1975 Harris County, Texas, United State | 1997 - 1998 | 3-4+ | Death | January 6, 1998 | |
 | Allanson, Patricia Vann Taylor | The Deadly Magnolia | August 22, 1937 (age 87) Wilmington, North Carolina, United States | 1974 - 1991 | 3 | August 22, 1976 | |
 | Allas, Anna | Austria-Hungary | 1930s - 1932 | 4+ | Life imprisonment | 1932 | |
 | Allen, Howard Arthur | February 10, 1949 Indianapolis, Indiana, United States | 1974 - 1987 | 3+ | Death (commuted to 60 years) | August 4, 1987 | |
 | Allen, Quincy Jovan | Weird Man | November 7, 1979 (age 45) Columbia, South Carolina, United States | July - August 2002 | 4 | Death; overturned and resentenced to life imprisonment | August 14, 2002 |
 | Allen, Kenwood | March - December 2022[1] | 5-21 | ||||
 | Allridge, Ronald Keith | September 27, 1960 West Germany | 1976 - 1985 | 4 (one as an accomplice) | 10 years imprisonment (1977), Death (1986) | March 25, 1985 | |
 | Alston, Robert Sylvester | The Greensboro Serial Killer | May 19, 1969 (age 55) Greensboro, North Carolina, United States | 1991 - 1993 | 4-6 | Life imprisonment without parole (x4) | January 28, 1994 |
 | Amati, Tony Ray | September 15, 1976 (age 48) Las Vegas, Nevada, United States | May - August 1996 | 3 | Life imprisonment | March 1, 1998 | |
 | Anderson, Allen Leroy | September 12, 1943 (age 81) Austin, Minnesota, United States | 1976 | 8+ | Death; commuted to life imprisonment | 1986 | |
 | Anderson, Curtis Dean | 1961 United States | 1984 - 1999 | 1 - 10 | 301 years imprisonment | 2004 | |
 | Anderson, Dale R. | November 22, 1951 (age 73) | 1978 - 1988 | 2-7+ | Life imprisonment | September 29, 1989 | |
 | Anderson, Dennis Ray | 1947 Pearland, Texas, United States | 1972 - 2010 | 3 | Life imprisonment without parole | 1972 | |
 | Anderson, Joshua Julius | June 17, 1987 (age 37) | 2006 - 2007 | 4-5 | 4 life sentences plus 35 years without parole | February 2, 2007 | |
 | Anderson, Russell Miner | 1954 (age 69–70) Bountiful, Utah, United States | 1987 | 3 | Life imprisonment | 1987 | |
 | Andrews, Joshua Wayne | Scarface | 1982 (age 41–42) | 2000 - 2002 | 3 - 5 | Death; overturned to life without parole | January 8, 2002 |
 | Andrews, Ralph Raymond | 1945 Evanston, Cook County, Illinois, United States | 1971 - 1991 | 4-40 | |||
 | Angelo, Richard | Angel of Death | August 29, 1962 (age 62) Long Island, New York, United States | April 1987 - October 1987 | 8 killed, 26 poisoned but rescued | 61 years to life in prison | November 15, 1987 |
 | Annibel, John | 1958 (age 66–67) Humboldt County, California, United States | 1976 - 1989 | 1 - 3+ | Life imprisonment | 1989 | |
 | Apodaca, Paul Raymond | 1968 (age 55–56) New Mexico, United States | 1988 - 1989 | 3 | 45 years imprisonment | July 2021 | |
 | Archerd, William Dale | May 5, 1912 Dardanelle, Arkansas, United States | 1947 - 1966 | 3-6 | Death; commuted to Life imprisonment | July 27, 1967 | |
 | Arguelles, Roberto V. | The Salt Lake City Strangler | February 14, 1962 Kearns, Utah, United States | February - March 1992 | 4+ | Death | August 8, 1992 |
 | Armstrong, James Edward | 1984 (age 40–41) Chester, Pennsylvania, United States | 2007 - 2010 | 3 | Life imprisonment | August 21, 2011 | |
 | Armstrong, John Eric | November 23, 1973 (age 51) New Bern, North Carolina, United States | 1992 - 1999 | 5-18 | Life imprisonment | ||
 | Arnold, Herbert | 1944 (age 80–81) New York, United States | 1965 - 1990 | 4 | Involuntary commitment | 2016 | |
 | Artman, Garry Dean | December 13, 1957 | 1996 - 2006 | 2+ (convicted), 11 (confessed) | August 16, 2022 | ||
 | Atkins, Benjamin Thomas | The Woodward Corridor Killer, The Highland Park Strangler | August 26, 1968 Detroit, Michigan, United States | December 14, 1991 - August 21, 1992 | 11 | Life imprisonment (x11) | August 21, 1992 |
 | Atkins, Joseph Ernest | June, 1947 South Carolina, United States | 1969 and 1985 | 3 | Death | ||
 | Auborn, Rebecca | October 18, 1990 (age 34) [1][unreliable source? ] Columbus, Ohio, United States | 2022 - 2023 | 4 | October 25, 2023 | ||
 | Avalos, Johnny Joe | The San Antonio Strangler | December 1, 1986 (age 38) | 2012 - 2015 | 5 | Life imprisonment (x2, concurrent) | April 12, 2015 |
 | Avila-torrez, Jorge | August 18, 1988 (age 36) Zion, Illinois, United States | 2005 - 2009 | 3 | February 2010 | ||
 | Axeman, Billy The | Billy the Axeman, Ax-Man, Midwest Axeman, Man from the Train | 1911-1912 (classic theory)1898-1912 (revised theory) | 24-30 (classic theory), 94 (revised theory) | |||
 | Baker, James | Texas Jim | 1907 Pittsburgh, Pennsylvania, United States | 1924 - 1929 | 2 - 9 | Life imprisonment | 1929 |
 | Balaam, Anthony | The Trenton Strangler | July 9, 1965 (age 59) Trenton, New Jersey, United States | 1994 - 1996 | 4 | Life imprisonment | August 8, 1996 |
 | Baldi, Joseph | The Queens Creeper, The Monster of Queens | January 16, 1941 Richmond Hill, Queens, New York, United States | 1970 - 1972 | 4 | Life imprisonment (x2) | June 21, 1972 |
 | Baldwin, Clark Perry | August 22, 1961 (age 63) Nashua, Iowa, United States | 3-4 | May 6, 2020 | |||
 | Ball, Joseph Douglas | The Alligator Man, The Butcher of Elmendorf, The Bluebeard of South Texas | January 7, 1896 San Antonio, Texas, United States | 1936 - 1938 | 5-20 | September 24, 1938 | |
 | Banks, Joseph | 1973 (age 51–52) United States | January - March 2022 | 3 | 2022 | ||
 | Bankston, Clinton | May 12, 1971 (age 53) | 1987 | 5 | August 16, 1987 | ||
 | Barber, Danny Lee | May 8, 1955 Torrance, California, United States | 1978 - 1980 | 4 | Death | ||
 | Barfield, Velma | Death Row Granny | October 29, 1932 South Carolina, United States | April 4, 1969 - February 4, 1978 | 6 | Death | May 13, 1978 |
 | Barini, Angelina | 1979 (age 44–45) Canada | July - August 2019 | 4 | 30 years imprisonment | 2019 | |
 | Barnabet, Clementine | c. 1894 (age 129–130) | February 1911 - 1912 | 35 | |||
 | Barnes, James Antonio | April 27, 1944 (age 80) | 3–7+ | November 10, 1988 | |||
 | Barnes, James Phillip | March 7, 1962 | 1986 - 1997 | 2 - 4 | December 12, 1997 | ||
 | Barnett, Flora | 1923 Indiana, United States | 1951 - 1954 | 3 | Life imprisonment | 1954 | |
 | Barone, Cesar Francesco | December 4, 1960 Fort Lauderdale, Florida, United States | 1991 - 1993 | 4+ | Death | February 1993 | |
 | Barr, Charles | The Petting Party Bandit, The Black Panther | 1903 Memphis, Tennessee, United States | January - May 1923 | 3 | Death | July 1924 |
 | Barron, Jack | 1962 (age 61–62) | 1992 - 1995 | 3 - 4 | Life imprisonment | July 20, 1995 | |
 | Bartlett, Polly | The Murderess of Slaughterhouse Gulch | 1868 | 3-22 | October 7, 1868 | ||
 | Battenfield, Billy | June 22, 1953 (age 71) McKinney, Texas, United States | 1977 - 2011 | 4 | 2011 | ||
 | Baumeister, Herbert Richard | The I-70 Strangler, Fox Hollow serial killer | April 7, 1947 Indianapolis, Indiana, United States | 1980s - 1996 | 11-21 (not confirmed, died before trial) | Died before apprehension | |
 | Beasley, Richard James | The Craigslist Killers | June 15, 1959 (age 65) | August - November 2011 | 3 | Death (x3) | |
 | Bell, Cimarron Bernard | April 7, 1974 (age 50) [1] South Whittier, California, United States | 2003 - 2004 | 4 | Death | February 14, 2004 | |
 | Bell, Edward Harold | May 26, 1939 Texas, United States | 1970s – 1992 (suspected) | 1-16 | 70 years imprisonment | February 14, 1993 | |
 | Bell, Larry Gene | October 30, 1949[1] Ralph, Alabama, United States | 1985 | 2-4 | Death | June 27, 1985 | |
 | Bell, Michael Bernard | November 24, 1970 (age 54) Florida, United States | 5 | Death | September 14, 1994 | ||
 | Bellamy, Shiquan D. | 1991 (age 33–34) Jersey City, New Jersey, United States | February - April 2010 | 5 | Life imprisonment | 2010 | |
 | Bender, Elvira | The Bloody Benders | [note 1] | ? - 1873 | 11+ | ||
 | Bender, John | The Bloody Benders | [note 1] | ? - 1873 | 11+ | ||
 | Bender, John Sr. | The Bloody Benders | [note 1] | ? - 1873 | 11+ | ||
 | Bender, Kate | The Bloody Benders | [note 1] | ? - 1873 | 11+ | ||
 | Berdella, Robert Andrew | The Kansas City Butcher, The Collector | January 31, 1949 Cuyahoga Falls, Ohio, United States | July 6, 1984 - April 2, 1988 | 6 | Life imprisonment without parole | April 2, 1988 |
 | Berkowitz, David Richard | Son of Sam, The .44 Caliber Killer | June 1, 1953 (age 71) Brooklyn, New York City, United States | July 29, 1976 - July 31, 1977 | 6 killed, 10 wounded (including two stabbings) | Life imprisonment (x6) | August 10, 1977 |
 | Bianchi, Kenneth Alessio | The Hillside Stranglers | May 22, 1951 (age 73) Rochester, New York, United States | 1977 - 1979 | 12+ | Life imprisonment | January 12, 1979 |
 | Bible, Danny Paul | The Ice Pick Killer | August 28, 1951 Angleton, Texas, United States | 1979 - 1984 | 4 | Death, 25 years | January 1984December 16, 1998 |
 | Biegenwald, Richard Fran | The Thrill Killer | August 24, 1940 Staten Island, New York, United States | 1958 - January 4, 1983 | 6-8+ | Death, commuted to four life terms | January 22, 1983 |
 | Biehler, Robert Leroy | August 5, 1934 Chase, Kansas, United States | 1966 - 1973 | 4 | Life imprisonment | December 12, 1975 | |
 | Bishop, Arthur | September 29, 1952 Hinckley, Utah, United States | October 14, 1979 - July 14, 1983 | 5 | Death | July 24, 1983 | |
 | Bittaker, Lawrence | The Tool Box Killers | September 27, 1940 Pittsburgh, Pennsylvania, United States | June 24 - October 31, 1979 | 5 | Death | November 20, 1979 |
 | Bixler, Rodney Troy | September, 1968 (age 56–57) Lawrenceburg, Kentucky, United States | February 4 - October 22, 2000 | 3 - 4 | 40 years imprisonment | ||
 | Bladel, Rudy | The Railway Killer, The Railway Sniper | December 8, 1932 Chicago, Illinois, United States | 1963 - 1978 | 3-7 | Life imprisonment | March 22, 1979 |
 | Blair, Terry | September 16, 1961 Kansas City, Missouri, United States | 1982; 2003-2004 | 7+ | Life sentences without the possibility of parole (x6) | September 14, 2004 | |
 | Blank, Daniel Joseph | The River Parishes Serial Killer | June 28, 1962 (age 62) Paulina, Rural St. James Parish, Louisiana, United states | 1996 - 1997 | 6 | Death by lethal injection (1999); Overturned; Sentenced to life in prison without parole (2001) | November 14, 1997 |
 | Blatti, George | 1946 (age 77–78) Malverne, New York, United States | 2016 - 2018 | 5 | 5-15 Years Imprisonment | 2019 | |
 | Bloomfield, Clifton Duane | The Breaking Bad Killer | March, 1969 (age 55–56) Kingman, Arizona, United States | 2005 - 2008 | 5 | 195 years in prison | July 1, 2008 |
 | Bolin, Oscar Ray | January 22, 1962 Portland, Indiana, United States | 1986 - 1987 | 3+ | Death | ||
 | Bolsinger, John Charles | The Eugene Serial Killer | September 17, 1957 Springfield, Oregon, United States | 1980 - 1988 | 4 | 5-years-to-life imprisonment (Utah) | April 3, 1980 |
 | Bone Collector, West Mesa | 2000 - 2005 (Discovered February 2, 2009) | 11+ | ||||
 | Bones Murderer, Somersworth Baby | 1949 - 1952 | 5 | N/A | |||
 | Bonin, William George | The Freeway Killer, The Freeway Strangler | January 8, 1947 Willimantic, Connecticut, United States | 1979 - 1980 | 14 convictions; 21-36+ suspected | Death | June 11, 1980 |
 | Bounds, Dallen | August 9, 1971 Ashland, Oregon, United States | June 26, 1999 - December 23, 1999 | 4+ | |||
 | Bowles, Gary Ray | The I-95 Killer | January 25, 1962 Clifton Forge, Virginia, United States | March 1994 - October 1994 | 6+ | Death | November 22, 1994 |
 | Boyette, William Eugene | 1973[2] | February, 2017 | 4 | |||
 | Bradley, Richard | 1983 (age 41–42) United States | 2019 - 2021 | 4 | May 2021 | ||
 | Brandt, Carl | February 23, 1957 Fort Wayne, Indiana, United States | January 3, 1971 - September 13, 2004 | 5-30+ | |||
 | Brashers, Robert | Yogurt Shop Killer | March 13, 1958 | 1990-1998 | 7 | Death | |
 | Briggen, Joseph | c. 1850 | 1880 - 1902 | 12+ | Life imprisonment (1902) | ||
 | Bright, Larry | The Bonecrusher | July 8, 1966 (age 58) Peoria County, Illinois, United States | 2003 - 2004 | 8+ | Life imprisonment (x8) | January 20, 2005 |
 | Briley, Anthony Ray | February 17, 1958 (age 66) Richmond, Virginia, United States | March 12 - October 19, 1979 | 12 | Life imprisonment | ||
 | Briley, James Dyral | June 6, 1956 Richmond, Virginia, United States | March 12 - October 19, 1979 | 12 | Death | ||
 | Briley, Linwood Earl | March 26, 1954 Richmond, Virginia, United States | March 12 - October 19, 1979 | 12 | Death | ||
 | Brownlee, Wesley | Stockton serial shootings, Stockton Serial Shooter | May 20, 1979 (age 45) San Francisco, California, United States[1] (Suspect) | April 10, 2021 - September 27, 2022 | 7 | October 15, 2022 | |
 | Cable, James | 1948 LaGrange, Kentucky, United States | 1977 - 1990 | 4-6+ | 300 years imprisonment | April 26, 1990 (final time) | |
 | Campbell, Charles | October 21, 1954 Oahu, Hawaii, United States | 1975 - 1982 | 4+ | Death (1982 murders) | April 1982 | |
 | Cannon, Patty | c. 1759/1760 or 1769 | 11 (confessed), 4 (charged) | ||||
 | Cano, Franc | July 22, 1986 (age 38) Los Angeles County, California, United States | 2013 - 2014 | 5 | |||
 | Caputo, Ricardo | The Lady Killer | 1949 Mendoza, Argentina | 1971 - 1977 | 4-6 | 25 years in prison | March 1, 1994 |
 | Carignan, Harvey Louis | The Want-Ad Killer, Harvey the Hammer | May 18, 1927 Fargo, North Dakota, United States | July 31, 1949 - September 20, 1974 | 3–5+ | Life imprisonment | September 17, 1949September 24, 1974 (final time) |
 | Carpenter, David Joseph | The Trailside Killer | May 6, 1930 (age 94) San Francisco, California, United States | August 19, 1979 - May 2, 1981 | 8-10+ | Suspended death sentence | May 14, 1981 |
 | Carr, Robert Frederick | December 22, 1943 Virginia, United States | 1972 - 1976 | 4 | Life imprisonment | May 30, 1976 | |
 | Carr, Thomas David | March 6, 1846 Sugar Hill, West Virginia, United States | 1860s - 1869 | 1-15 | Death | January 22, 1869 | |
 | Carrington, John | 1968 (age 56–57) Clinton, Maryland, United States | 1992 - 2021 | 4 | 2021 | ||
 | Carter, Frank | c. 1881 County Mayo, Ireland | 2 convicted; 43 claimed | ||||
 | Chadd, Billy | December 14, 1954 (age 70) San Diego, California, United States | 1974 - 1978 | 3-4 killed, 4 survived | Death (California; May 12, 1979); commuted to 3 life sentences + 13 years | April 1978 | |
 | Chandler, Oba | October 11, 1946 Cincinnati, Ohio, United States | 1989 - 1990 | 4+ | Death | ||
 | Charleston, Shavonda | 1999 - 2000 | 4 | Life imprisonment | |||
 | Chase, Richard Trenton | The Vampire of Sacramento, The Dracula Killer, The Vampire Killer | May 23, 1950 Sacramento, California, United States | 1977 - 1978 | 6 | Death | January 27, 1978 |
 | Chatman, Stanley | 1988 (age 36–37) Birmingham, Alabama, United States | 4 | 2013 | |||
 | Chavez, Juan | Los Angeles ATM killer | 1966 Ciudad Juarez, Mexico | 1986 - 1990 | 6+ (5 convictions) | Life imprisonment | 1994 |
 | Chemirmir, Billy | December 8, 1972 Kabonyony village, Eldama Ravine, Baringo County, Kenya | 2016 - 2018 | 22-28 (estimates) | Life imprisonment | March 20, 2018 | |
 | Chester, Elroy | June 14, 1969 Jefferson County, Texas, United States | 1997 - 1998 | 5 | Death (September 26, 1998) | ||
 | Child Killer, Oakland County | Oakland County Child Killer (OCCK), The Babysitter Killer, The Babysitter | February 15, 1976 - March 16, 1977 | 4+ | |||
 | Childs, Terry | September 22, 1955 Santa Clara County, California, United States | 1979 - 1985 | 5 - 12 | Life imprisonment | August 22, 1985 | |
 | Christensen, William Dean | The American Jack the Ripper | September 24, 1945 Bethesda, Maryland, United States | 1982 - 1983 | 4-24+ | Life imprisonment (Pennsylvania), 40 years (Maryland) | December 4, 1983 |
 | Christiansen, Thor Nis | December 28, 1957 Denmark | November 20, 1976 - April 18, 1979 | 4 | Life imprisonment | July 11, 1979 | |
 | Christopher, Joseph Gerard | The .22-Caliber Killer, The Midtown Slasher | July 26, 1955 Buffalo, New York, United States | September - December 1980 | 12+ | 60 years (overturned); Life imprisonment | January 1981 |
 | City Butcher , Oklahoma | Oklahoma City Butcher, OKC Butcher | 1976 - 1986 | 3 | |||
 | Clark, Douglas Daniel | Sunset Strip Killer, Sunset Strip Killers, The Hollywood Slasher, The Sunset Strip Slayer | March 10, 1948 Pennsylvania, United States | June 1, 1980 - August 1980 | 6+ | Death | August 12, 1980 |
 | Clark, Vernon Lee | December 28, 1955 (age 69) Elkridge, Maryland, United States | 1980 - 1989 | 4-6+ | Life imprisonment | January 26, 1990 | |
 | Clement, Marie | February 16, 1863 Harlange, Wiltz, Luxembourg | 1880 - 1885 | 4 | 1 year imprisonment | June 1884 | |
 | Code, Nathaniel Robert | Cedar Grove Killer, Shreveport Serial Killer | March 12, 1956 (age 68) Shreveport, Louisiana, United States | 1984 - 1987 | 8-12 | Death | August 6, 1987 |
 | Coffman, Cynthia Lynn | January 19, 1962 (age 62) St. Louis, Missouri, United States | October - November 1986 | 4 (2 convictions) | Death | November 14, 1986 | |
 | Cole, Carroll Edward | May 9, 1938 Sioux City, Iowa, United States | 1947 - 1980 | 16 | Death | 1980 | |
 | Coleman, Alton | November 6, 1955 Waukegan, Illinois, United States | May - July 1984 | 8 | Death | July 20, 1984 | |
 | Coleman, Phillip | 1919 East St. Louis, Illinois, United States | July 3 - 24, 1943 | 3-23 | Death | July 28, 1943 | |
 | Collins, John Norman | The Ypsilanti Ripper, The Co-Ed Killer, The Michigan Murderer, The Ypsilanti Killer | June 17, 1947 (age 77) Windsor, Ontario, Canada | July 9, 1967 - July 23, 1969 | 1-7+ | Life imprisonment | July 30, 1969 |
 | Colon Maldonado, Angel | The Angel of Death | Puerto Rico, United States | 1985 - 1987 | 3 - 20 | Life imprisonment | 1987 |
 | Colvin, Dellmus Charles | August 3, 1959 (age 65) | 1987 - 2005 | 7+ | Life imprisonment (x6) | November 2005 | |
 | Conahan, Daniel Owen | The Hog Trail Killer | May 11, 1954 (age 70) Charlotte, North Carolina, United States | 1996 | 1 convicted, 12+ suspected | Death | |
 | Conde, Rory Enrique | The Tamiami Trail Strangler | June 14, 1965 (age 59) Barranquilla, Colombia | September 17, 1994 - January 12, 1995 | 6 | Death | June 26, 1995 |
 | Connecticut, River Valley Killer | Connecticut River Valley Killer, New Hampshire Serial Killer, Kelleyville Killer | 1978 - 1987 (speculated) | 7+ | |||
 | Cook, Anthony H. | March 9, 1949 (age 75) Mobile, Alabama, United States | 1973 - 1981 | 9+ | 15 years to Life (x2) | October 14, 1981 | |
 | Cook, Nathaniel | October 25, 1958 (age 66) Mobile, Alabama, United States | 1973 - 1981 | 3-9+ | 15-75 years | February 13, 1998 | |
 | Cooks, Jessie | Zebra murders | 1973 - 1974 | 15 dead; 8-10 wounded | Life imprisonment | 1974 | |
 | Cooksey, Cleophus | King Playbola (Rap alias) | March 25, 1982 (age 42) Tucson, Arizona, United States | November 27, 2017 - December 17, 2017 | 9 | ||
 | Cooper, Samuel James | January 12, 1977 (age 47) North Carolina, United States | 2006 - 2007 | 5 | Life imprisonment without parole (5 consecutive life terms) | November 2007 | |
 | Copeland, Faye Della | August 4, 1921 Harrison, Arkansas, United States | 1986 - 1989 | 5–12 | Death by lethal injection (Commuted to life imprisonment on August 6, 1999; paroled 2002) | October 17, 1989 | |
 | Copeland, Ray | December 30, 1914 Oklahoma, United States | 1986 - 1989 | 5-12 | Death | October 17, 1989 | |
 | Corll, Dean Arnold | The Candy Man, The Pied Piper | December 24, 1939 Fort Wayne, Indiana, United States | 1970 - 1973 | 28+ | ||
 | Corona, Juan Vallejo | February 7, 1934 Autlán, Jalisco, Mexico | February 1, 1971 - May 19, 1971 | 25 | 25 life sentences with possibility of parole | May 26, 1971 | |
 | Costa, Antone Charles | August 2, 1944 Cambridge, Massachusetts, United States | 1968 - 1969 | 4-8 | Life imprisonment | 1969 | |
 | Cottingham, Richard Francis | The Torso Killer, The New York Ripper, The Times Square Killer | November 25, 1946 (age 78) Bronx, New York, United States | 1967 - 1980 | 17 (confirmed), 85–100 (claimed) | Life imprisonment | May 22, 1980 |
 | Cousins, Clifton | September 15, 1968 (age 56) Ohio, United States | 1988 - 1996 | 3 - 4 | 1989 | ||
 | Cowan, Mary | The Borgia of Maine | March 8, 1863 Plymouth, Maine, United States | 1884 - 1894 | 6 (1 conviction) | Life imprisonment | September 1894 |
 | Cox, Scott William | November 3, 1963 (age 61) Newberg, Oregon, United States | 2-20+ | 25 years in prison, Lifetime post-prison supervision | |||
 | Craine, Louis | The Southside Slayer | January 6, 1957 Los Angeles, California, United States | 1984 - 1987 | 4-5+ | Death | May 29, 1987 |
 | Crawford, Andre | The Southside Strangler | March 20, 1962 (age 62) Chicago, Illinois, United States | 1993 - 1999 | 11 | Death; commuted to life imprisonment | January 28, 2000 |
 | Cream, Thomas Neill | The Lambeth Poisoner | May 27, 1850 Glasgow, Scotland, United Kingdom | 1881 - 1892 | 5+ | Life imprisonment (Illinois), Death (England) | June 3, 1892 |
 | Creech, Thomas Eugene | September 9, 1950 (age 74) Hamilton, Ohio, United States | 1974 - 1981 (confirmed) | 3 convictions, possibly 9-42 total | Death (Jensen), Death; commuted to life imprisonment (x2) (Arnold/Bradford murders) | November 8, 1975 | |
 | Creek Drownings, Rapid City | 1998 - 2000 | 11+ | N/A | |||
 | Crump, Thomas Wayne | 1940 | 1970s - 1981 | 4-7 | Life imprisonment (New Mexico), Death (Nevada) | ||
 | Cullen, Charles Edmund | The Angel of Death | February 22, 1960 (age 64) West Orange, New Jersey, United States | 1988 - 2003 | 29 confirmed; authorities suspect several hundred more | 18 consecutive life sentences (eligible for parole in 2403) | December 15, 2003 |
 | Cunanan, Andrew Phillip | August 31, 1969 National City, California, United States | 5 | ||||
 | Curry, James Richard | November 16, 1946 Bexar County, Texas, United States | 1978 - 1983 | 4-5 | January 4, 1983 | ||
 | Curtis, Lillie Mae | 1899 Texas, United States | 1935 - 1938 | 7 | 495 years imprisonment | March 16, 1938 | |
 | Dahmer, Jeffrey Lionel | The Milwaukee Cannibal, The Milwaukee Monster | May 21, 1960 Milwaukee, Wisconsin, United States | 1978 - 1991 | 17 | Life imprisonment (x16; 941 years in prison) | July 22, 1991 |
 | Dalton, Lawrence | April 12, 1945 (age 79) | 1977 - 1978 | 4 | Life imprisonment | April 23, 1979 | |
 | Daniels, James Edward | 1940 Brooklyn, New York City, United States | 1963 - 1984 | 4 | 50-years-to-life | Died before apprehension | |
 | Danielson, Robert Wayne | August 25, 1946Iowa, United States | 1970 - 1982 | 7 | Death (California), Life imprisonment (Oregon) | April 6, 1984 | |
 | Danks, Joseph Martin | The Koreatown Slasher | June 17, 1962 (age 62) Bay City, Michigan, United States | 1986 - 1987; 1990 | 7-8 | Death | |
 | Daugherty, Jeffery Joseph | 1955 | February - March 1976 | 5+ | March 18, 1976 | ||
 | Davis, Arlie Ray | November 8, 1955 Peoria, Illinois, United States | 1993 - 1995 | 1 - 6+ | Death | 1995 | |
 | Davis, Bruce Alan | September 3, 1948 Toledo, Ohio, United States | 1971 - 1982 (confirmed) | 3-33 | 5 to 15 years imprisonment (District of Columbia), Life imprisonment (Illinois) | October 31, 1982 (For the final time) | |
 | Davis, Girvies L. | The .22 Caliber Killers | January 20, 1958 East St. Louis, Illinois, United States | 1978 - 1980 | 4-9+ | Death | |
 | Davis, Larry | Newberry, South Carolina | 1 - 6 killed 9 attempted 4 hostages | ||||
 | Davis, William George | February 3, 1984 (age 40) Longview, Texas, United States | June 2017 - January 2018 | 4–7 killed; 5 attempted | Death | April 11, 2018 | |
 | Davis 8, Jeff | The Jeff Davis 8, The Jennings 8 | 2005 - 2009 | 8 | |||
 | Deangelo, Joseph James | Golden State Killer, Visalia Ransacker, EARONS,[note 1], East Area Rapist, East Side Rapist, East Bay Rapist, Diamond Knot Killer, Night Stalker, Original Night Stalker | November 8, 1945 (age 79) Bath, Steuben County, New York, United States | 1973 - 1986 | 13 murdered, 50 raped, 120 burgled | 12 life sentences plus 8 years | April 24, 2018 |
 | Dennis, Jerome | December 14, 1966 (age 58) Newark, New Jersey, United States | December 16, 1991 - April 11, 1992 | 5 | Life imprisonment | April 12, 1992 | |
 | Denver, Prostitute Killer | Denver Prostitute Killer | 1975 - 1995 | 17-27 | |||
 | Denver, Strangler | Denver Strangler, Jack the Strangler, The Strangler of Denver | 1894 - 1903 | 3-5 | |||
 | Desalvo, Albert Henry | The Boston Strangler, Mad Strangler of Boston, The Measuring Man, The Green Man | September 3, 1931 Chelsea, Massachusetts, United States | June 14, 1962 - January 4, 1964 | 13 | Life imprisonment | October 27, 1964 |
 | Diaz, Robert Rubane | The Lidocaine Killer | March 23, 1938 Gary, Indiana, United States | March - April 1981 | 12 | Death (April 11, 1984) | November 24, 1981 |
 | Dieteman, Samuel John | October 17, 1975 (age 49) | May, 2005 - July 30, 2006 | 8 killed; 19 injured | Life without parole | August 3, 2006 | |
 | Dillon, Andrew | June 24, 1964 (age 60) Scranton, Pennsylvania, United States | 1990 - 1995 | 5+ | Life imprisonment without parole | 1995 | |
 | Dillon, Thomas Lee | The Roadside Sniper, Ohio Outdoorsman Killer | July 9, 1950 Canton, Ohio, United States | April 1, 1989 - April 5, 1992 | 5 (known) | November 27, 1992 | |
 | Dominique, Ronald Joseph | The Bayou Strangler | January 9, 1964 (age 60) Thibodaux, Louisiana, United States | 1997 - 2006 | 23+ | Life Imprisonment (x8) | December 1, 2006 |
 | Donaldson, Howell Emanuel Iii | The Seminole Heights Serial Killer | January 26, 1993 (age 31) Charlotte, North Carolina, United States | October 9, 2017 - November 14, 2017 | 4 | November 28, 2017 | |
 | Doodler, The | The Doodler, The Black Doodler | January 1974 - September 1975 | 6-16+ dead, 3 survived | |||
 | Doss, Nannie | The Giggling Granny, The Giggling Nanny, The Jolly Black Widow, The Lonely Hearts Killer | November 4, 1905 Blue Mountain, Alabama, United States | 1927 - 1954 | 11 | Life imprisonment | October 1954 |
 | Drane, Ronnie Dontell | 1973 (age 51–52) Gary, Indiana, United States | 2002 - 2003 | 4 - 5+ | 2004 | ||
 | Dufour, Donald William | March 22, 1956 | 1982 | 5-12 | October 14, 1982 | ||
 | Duncan, Joseph Edward Iii | February 25, 1963 Tacoma, Washington, United States | 1978 - July 2, 2005 (confirmed) | 5-8 killed, 3-16 raped | July 2, 2005 | ||
 | Durocher, Michael Alan | 1960 Florida, United States | 1983 - 1988 | 5 | Death (x2) (1988), Life imprisonment | 1988 | |
 | Durousseau, Paul | Jacksonville Serial Killer | July - October 1974 | 5 | N/A | ||
 | Edwards, Andrew David | March 6, 1958 (age 66) Sunnyvale, California, United States | 1987 - 1992 | 4 | Life imprisonment | January 26, 1993 | |
 | Edwards, Edward Wayne | June 14, 1933 Akron, Ohio, United States | 1977 - 1996 | 5 (confirmed), 9-15+ (suspected) | Death | 2009 | |
 | Edwards, Mack Ray | October 17, 1918 Arkansas, United States | 1953 - 1970 | 6+ | Death | March 6, 1970 | |
 | Eichinger, John Charles | February 18, 1972 (age 52) Malvern, Pennsylvania, United States | 1999 - 2005 | 4 | Death | March 25, 2005 | |
 | Elder, Roberta | Mrs. Bluebird | July 18, 1910 | 1931 - 1952 | 13 | Life imprisonment | |
 | Ellis, Walter Earl | The Milwaukee North Side Strangler | June 24, 1960 Holmes County, Mississippi, United States | October 10, 1986 - April 27, 2007 | 8-10+ (7 convictions) | Seven consecutive life sentences without the possibility of parole | September 7, 2009 |
 | Ellwood, Russell | Massillon, Ohio (possibly) | 1991 - 1997 | 1-16+ | Life imprisonment | March 4, 1998 | |
 | Emory, Joseph | The Cut-Rate Osteopath | 1920 California, United States | 1960 - 1976 | 1 - 11+ | unknown | 1976 |
 | Engleman, Glennon Edward | The Killing Dentist | February 6, 1927 St. Louis, Missouri, United States | 1958 - 1980 | 5-7 | February 24, 1980 | |
 | Ervin, Joseph Michael | June 25, 1951 Fort Worth, Texas, United States | 1969 & 1978 - 1981 | 6 | June 27, 1981 | ||
 | Escobar, Ramon Alberto | June 5, 1971 (age 53) El Salvador | August - September 2018 | 7 | September 26, 2018 | ||
 | Espinosa, Felipe Nerio | The Axeman of Colorado | c. 1826 Rio Arriba County, New Mexico Territory, U.S. or Veracruz, Mexico | Spring 1863 - Fall 1863 | 32 | ||
 | Etheridge, Ellen | 1891 United States | June - October 1913 | 4 | Life imprisonment | 1913 | |
 | Evans, Barbara Ann | 1941 (age 82–83) Troutman, North Carolina, United States | January - September 2005 | 4 | N/A | July 26, 2006 | |
 | Evans, Donald Leroy | July 5, 1957 Watervliet, Michigan, United States | 1985 - 1991 | 3-70+ | Death | August 5, 1991 | |
 | Evans, Gary Charles | October 7, 1954 Troy, New York, United States | February, 1985 - October, 1997 | 5 | Died before trial | May 27, 1998 | |
 | Ewell, John Wesley | March 25, 1957 (age 67) Los Angeles, California, United States | September - October 2010 | 4 | Life imprisonment without parole | October 23, 2010 | |
 | Ewing, Alex Christopher | Aurora Hammer Killer | August 14, 1960 (age 64) MCAS Cherry Point, North Carolina, United States | 1984 | 4+ | Life imprisonment | |
 | Eyler, Larry William | The Highway Killer, The Interstate Killer | December 21, 1952 Crawfordsville, Indiana, United States | 1982 - 1984 | 21-24 | August 21, 1984 | |
 | Falling, Christine Laverne | March 12, 1963 (age 61) Perry, Florida, United States | 1980 - 1982 | 6 | Life imprisonment | ||
 | Farrer, Nancy | England | 1851 - 1852 | 4 | Involuntary commitment | 1852 | |
 | Fautenberry, John Joseph | July 4, 1963 New London, Connecticut, United States | 1990–1991 (possibly 1984) | 5-6 | Death (Ohio), Life imprisonment (New Jersey), 99 years imprisonment (Alaska) | March 17, 1991 | |
 | Fayette Butcher, The Mad | 1962 - 1963 | 7+ | N/A | |||
 | Fayne, Lorenzo | April 2, 1971 (age 53) Milwaukee, Wisconsin, United States | 1989 - 1993 | 6 | Death; commuted to life imprisonment | July 24, 1993 | |
 | Feigenbaum, Carl Ferdinand | 1840 Karlsruhe (possibly), Germany | Possibly 1888 - 1894 | 1-13+ | Death | August 31, 1894 | |
 | Feltner, Jeffrey Lynn | November 21, 1962 Miami, Florida, United States | 1988 - 1989 | 7 | Life imprisonment | August 10, 1989 | |
 | Ferguson, John Errol | February 27, 1948 Miami, Florida, United States | 1974 - 1978 | 8 - 12 | Death | April 5, 1978 | |
 | Fernandez, Raymond Martinez | The Honeymoon Killers, The Lonely Hearts Killers | December 17, 1914 Hawaii | 1947 - 1949 | 3-17 | Death | |
 | Fish, Hamilton Howard | The Gray Man, The Werewolf of Wysteria, The Brooklyn Vampire | May 19, 1870 Washington, D.C., United States | July 15, 1924 - June 3, 1928 | 3 (confirmed); 9-100+ (claimed) | Death | December 13, 1934 |
 | Fisher, Constance Margaret | March 26, 1929 Oakland, Maine, United States | 1954 - 1966 | 6 | Involuntary commitment | July 1, 1966 (Last time) | |
 | Fitzsimmons, George Kearon Joseph | The Karate Chop Killer, The Buffalo Ripper | 1937 Buffalo, New York, United States | 1969 - 1973 | 4 | Life imprisonment without parole | November 18, 1973 |
 | Floyd, Cecil Henry | 1945 Indianapolis, Indiana, United States | 1973 - 1974 | 6 - 11 | Life imprisonment without parole (IN, NE) | July 24, 1974 | |
 | Floyd, Charles | 1942 - 1948 | 5+1 | Committed to asylum (1949) | November 22, 1949 | ||
 | Foley, Robert Carl | September 13, 1956 (age 68) United States | 1977 - 1991 | 7+ | Death | 1991 | |
 | Ford, Wayne Adam | December 3, 1961 (age 63) Petaluma, California, United States | October, 1997 - November 3, 1998 | 4+ | Death | November 3, 1998 | |
 | Fornuto, Deborah | 1955 | 1972 - 1987 | 6-7 | Never charged | Never apprehended | |
 | Forrest, Warren Leslie | June 29, 1949 (age 75) Vancouver, Washington, United States | 2–7+ | Life imprisonment | October 2, 1974 | ||
 | Forte, Linwood Earl | July 25, 1964 (age 60) | 1990 - 1994 | 4 | Death | ||
 | Fowler, Bobby Jack | June 12, 1939 Texas, United States | 1969 - 1995 | 0 (confirmed), 20+ (suspected) | 16 years, 3 months with the possibility of parole | June 28, 1995 | |
 | Francois, Kendall | The Poughkeepsie Killer, Stinky | July 26, 1971 Poughkeepsie, New York, United States | October 1996 - August 26, 1998 | 8-10+ | Life imprisonment without parole | September 2, 1998 |
 | Franklin, Gary Don | May 28, 1946 Crossett, Arkansas, United States | 1967 - 1970 | 6 | Life imprisonment | 1970 | |
 | Franklin, Joseph Paul | The Racist Killer | April 13, 1950 Mobile, Alabama, United States | August 7, 1977 - August 20, 1980 | 8 convictions; 20+ suspected | Life imprisonment x4 (March 23, 1981 & September 1986), Death by lethal injection (July 17, 1984 & February 27, 1997) | October 28, 1980 |
 | Franklin, Lonnie David | The Grim Sleeper, The Southside Slayer, The 25 Auto Killer | August 30, 1952 Los Angeles, California, United States | 1985 - 2007 | 10–25+ victims, 1 known survivor | Death | July 7, 2010 |
 | Franklin, Zackery Cody | 1991 (age 33–34) Connecticut, United States | 2007 - 2011 | 4 | 195 years imprisonment | 2011 | |
 | Freeman, Ronald Lupez | 1971 (age 52–53) Cobb County, Georgia, United States | January - March 1992 | 4 | Life imprisonment | April 1, 1992 | |
 | Freeman, Winona Ola | The Cat Woman | October 21, 1901 Danville, Missouri, United States | 1924 - 1954 | 4 | Life imprisonment (1924), Life imprisonment (1954) | November 1953 |
 | Fry, Robert Ray | 1974 (age 49–50) New Mexico, United States | 1996 - 2000 | 4+ | Death; commuted to life imprisonment | 2000 | |
 | Gacy, John Wayne | The Killer Clown, Pogo The Clown, ”Patches The Clown” | March 17, 1942 Chicago, Illinois, United States | 1972 - 1978 | 33+ | Death (12 counts) | December 21, 1978 |
 | Gallego, Charlene Adell | The Love Slave Killers | October 10, 1956 (age 68) Stockton, California , United States | September 10, 1978 - November 2, 1980 | 10 | November 17, 1980 | |
 | Gallego, Gerald Armond | The Love Slave Killers | July 17, 1946 Sacramento, California, United States | September 10, 1978 - November 2, 1980 | 11+ | Death | November 17, 1980 |
 | Garcia, Anthony Joseph | June 7, 1973 (age 51) Los Angeles, California, United States | 2008 - 2013 | 4 | Death | July 15, 2013 | |
 | Gargiulo, Michael Thomas | Hollywood Ripper, Chiller Killer, The Boy Next Door Killer | February 15, 1976 (age 48) Glenview, Illinois, United States | 1993-2008 | 3-10; 1 survived | June 6, 2008 | |
 | Gary, Carlton Michael | The Stocking Strangler | September 24, 1950 Columbus, Georgia, United States | July, 1970 - April 19, 1978 | 4-8+ (3 convictions) | December 1978May 3, 1984 | |
 | Gaskins, Donald Henry | The Meanest Man In America, The Redneck Charles Manson, The Hitchhikers Killer | March 13, 1933Florence County, South Carolina, United States | 1953 - 1982 | 15 Confirmed (110 claimed) | Death (1976 and 1983) | November 14 1975 |
 | Gaynor, Alfred J. | December 10, 1966 (age 58) Springfield, Massachusetts, United States | 1995 - 1998 | 9 | Life imprisonment | April 10, 1998 | |
 | Gecht, Robin | The Ripper Crew, The Chicago Rippers | November 30, 1953 (age 71) Menard, Illinois, United States | May 23, 1981 - October 8, 1982 | 18 | 120 years imprisonment | November 5, 1982 |
 | Gein, Edward Theodore | Butcher of Plainfield, The Plainfield Ghoul | August 27, 1906 La Crosse County, Wisconsin, United States | 1954 - 1957 | 2 murders confirmed, 9 corpses mutilated (obtained from desecrated graves) | Institutionalized | November 16, 1957 |
 | Geisen-volk, Helene Auguste | 53 | Three and a half to seven years in prison | ||||
 | Geralds, Hubert | The Englewood Strangler, The Southside Strangler | November 13, 1964 (age 60) New York City, New York, United States | December 22, 1994 - June 17, 1995 | 5 | Life without parole | June 18, 1995 |
 | Getreu, John Arthur | August 26, 1944 Newark, Ohio, United States | 1963 - 1975 | 3–4+ | November 20, 2018 | ||
 | Gibbs, Janie Lou | December 25, 1932 Cordele, Georgia, United States | 1966 - 1967 | 5 | Life imprisonment (x5) | 1967 | |
 | Gibson, Keith | 1982 (age 41–42) Philadelphia, Pennsylvania, United States | 2008 - 2021 | 3 - 7 | June 8, 2021 | ||
 | Gibson, Mose | 1883 Bienville Parish, Louisiana, United States | 1908 - 1920 | 3-7+ | Death | ||
 | Gibson, William Clyde | October 10, 1957 (age 67) [1] | 2002 - 2012 (confirmed murders) | 3 | Death | April 19, 2012 | |
 | Gifford, Bertha Alice Williams | October 30, 1871 Morse Mill, Missouri, United States | 1900s - 1928 | 3-17 | Committed to mental facility | 1928 | |
 | Gilbert, Kristen Heather | The Angel of Death | November 13, 1967 (age 57) Fall River, Massachusetts, United States | 1995 – 1996 (Gilbert is suspected of deaths dating back to 1989) | 4-70+ | Life imprisonment without the possibility of parole | 1996 |
 | Gilbert, William Wayne | 1950 Los Lunas, New Mexico, United States | 1979 - 1980 | 4 - 6 | Death; commuted to life imprisonment | 1980 | |
 | Giles, Bernard Eugene | April 9, 1953 (age 71) Titusville, Florida, United States | September - November 1973 | 5 | Life imprisonment | December 11, 1973 | |
 | Gilligan, Amy Archer | October 31, 1873 Milton, Connecticut, United States | 1907 - 1917 | 5+ | Death, later sent to insane asylum | 1917 | |
 | Gillis, Sean Vincent | The Other Baton Rouge Killer | June 24, 1962 (age 62) Baton Rouge, Louisiana, United States | March 1994 - April 28, 2004 | 8 | Life without the possibility of parole, probation or suspension of sentence | April 29, 2004 |
 | Gilyard, Lorenzo Jerome | The Kansas City Strangler | May 24, 1950 (age 74) Kansas City, Missouri, United States | 1977 - 1993 | 6-13 | Life imprisonment without parole | 2004 |
 | Glaze, Billy Richard | Butcher Knife Billy | June 13, 1943[1] Georgia, United States | 1986 - 1987 | 3-20+ | 52 years in prison | August 31, 1987 |
 | Goble, Sean Patrick | The Interstate Killer, The Baileyton Truck Stop Murderer | November 1, 1966 (age 58) Asheboro, North Carolina, United States | January - March 1995 (known) | 4 - 12 | Life imprisonment, two consecutive terms | April 13, 1995 |
 | Gohl, William F. | Ghoul of Grays Harbor | February 6, 1873 Germany | 1902 - 1910 | 2 (but possibly 100+) | Life imprisonment | 1910 |
 | Gomez, Lloyd | The Phantom Hobo Killer, The Hobo Jungle Killer | 1923 Nevada, United States | 1950 - 1951 | 9 | Death | January 15, 1952 |
 | Gordon, Steven | February 3, 1969 (age 55) Lynwood, California, United States | 2013 - 2014 | 5 | Death | April 11, 2014 | |
 | Gore, David Alan | The Killing Cousins | August 21, 1953 Florida, United States | 1981 - 1983 | 6 | July 26, 1983 | |
 | Gosnell, Kermit Barron | February 9, 1941 (age 83) Philadelphia, Pennsylvania, United States | 2006 - 2010 | 47-100 | Life without parole plus 30 years | January 19, 2011 | |
 | Goudeau, Mark | The Baseline Killer, The Baseline Rapist | September 6, 1964 (age 60) Phoenix, Arizona, United States | 2005 - 2006 | 9 (murder), 15 (sexual assault), 11 (kidnapping) | Death | September 4, 2006 |
 | Graham, Gwendolyn Gail | The Lethal Lovers, The Alpine Manor serial killers | August 6, 1963 (age 61) | January - February 1987 | 5 | Life imprisonment | December, 1988 |
 | Graham, Harrison Frank | September 9, 1959 (age 65) Philadelphia, Pennsylvania, United States | 1986 - 1987 | 7 | Death; commuted to Life imprisonment | August 17, 1987 | |
 | Grant, Gary Gene | June 29, 1951 (age 73) Renton, Washington, United States | 1969 - 1971 | 4 | Life imprisonment (x4) | April 30, 1971 | |
 | Grant, Waldo | November 3, 1946 Bulloch County, Georgia, United States | 1973 - 1976 | 4+ | Life imprisonment (x4) | January 10, 1977 | |
 | Granviel, Kenneth | August 4, 1950 Fort Worth, Texas, United States | 1974 - 1975 | 7-9 | Death | February 8, 1975 | |
 | Grate, Shawn Michael | August 8, 1976 (age 48) Marion, Ohio, United States | 2006 - 2016 | 5+ | September 13, 2016 | ||
 | Gray, Marvin Gayle | August 7, 1954 Princeton, Kentucky, United States | 1971 - 1992 | 3-100 | Life imprisonment | July 1992 | |
 | Gray, Ronald | August 14, 1965 (age 59) Cochran, Georgia, United States | 1986 - 1987 | 4 | Death | ||
 | Green, Gregory | 1966 (age 57–58) Michigan, United States | 1991 - 2016 | 5 | 15-25 years imprisonment, 47-102 imprisonment (2017) | 2016 | |
 | Green, Larry | Zebra murders | 1973 - 1974 | 15 dead; 8-10 wounded | Life imprisonment | 1974 | |
 | Green, Ricky Lee | December 27, 1960 Fort Worth, Texas, United States | 1985 - 1986 | 4-12 | Death | April 27, 1989 | |
 | Green, Samuel | Terror of New England | 1796 Meredith, New Hampshire, United States | 1817 - 1821 | Numerous | Death | |
 | Greenawalt, Randall | February 24, 1949 Hannibal, Missouri, United States | 1974 - 1978 | 7 - 9 | 25-years-to-life (First murders), Death (Second murders) | August 11, 1978 (last time) | |
 | Greenwood, Vaughn Orrin | Skid Row Slasher | January 19, 1944 Pennsylvania, United States | 1964 - 1975 | 11 murdered, 1 survivor | Life imprisonment | February 3, 1975 |
 | Gretzler, Douglas Edward | May 21, 1951 The Bronx, New York, United States | October - November 1973 | 11-17 | Death (Arizona), California (Life imprisonment) | November 8, 1973 | |
 | Griffin, Geoffrey T. | The Roseland killer, The Southside Strangler | 1971 (age 52–53) | May - June 2000 | 7 | 100 years in prison | June 17, 2000 |
 | Grinder, James B. | 1945 | 1976 - 1984 | 4 | Life imprisonment | March 1998 | |
 | Grissom, Richard Anthony | November 10, 1960 (age 64) South Korea | 1977 - 1989 | 4+ | Life imprisonment | July 7, 1989 | |
 | Groves, Vincent Darrell | April 19, 1954 Denver, Colorado, United States | 1978 - 1988 | 7-20+ (3 convictions) | Life imprisonment + 20 years imprisonment | September 1, 1988 | |
 | Guatney, William J. | Freight Train, Choo Choo, Junior | February 14, 1922 Pekin, Illinois, United States | 1969 - 1981 | 0 - 15 | Various | August 29, 1979 |
 | Gunness, Belle | November 11, 1859 Selbu, Sør-Trøndelag, Norway | 1884 - 1908 | 14 (at least) | |||
 | Hahn, Anna Marie | July 7, 1906 Bavaria, Germany | May 6, 1933 - August 1, 1937 | 5 | Death | 1937 | |
 | Halbower, Rodney Lynn | The San Mateo Slasher | June 27, 1948 (age 76) Wisconsin, United States | January - April 1976 | 5+ | Life imprisonment | March 2014 |
 | Haley, Kevin Bernard | October 21, 1963 (age 61) Memphis, Tennessee, United States | 1983 - 1984 | 2 - 8 | Death | October 9, 1984 | |
| Haley, Reginald | 1960 (age 64–65) Memphis, Tennessee, United States | 1983 - 1984 | 2 - 8 | Life imprisonment | October 9, 1984 | |
 | Hall, James Waybern | The Arkansas Butcher, The Arkansas Hitchhike Killer | January 28, 1921 Enola, Arkansas, United States | 1944 - 1945 | 4+ | Death | March 15, 1945 |
 | Hall, Jennifer Ann | 2001 - 2022 | 3 - 9 | ||||
 | Halliday, Lizzie | c. 1859 Antrim, Ireland | 1890s | 4-7 | |||
 | Hammer, Frederick Philip | December 17, 1959 (age 65) United States | 2007 - 2008 | 4–17 | |||
 | Hance, William Henry | November 10, 1951 | 1977 - 1978 | 4 (known) | April 4, 1978 | ||
 | Hanify, Sean Paul | January 20, 1970 (age 54) | 1989 - 2002 | 2-8 | Life imprisonment (Colorado, 2005 and 2007) | August 8, 2002 | |
 | Hankins, Terry Lee | October 10, 1974 Texas, United States | October 1, 2000 - August 27, 2001 | 5 | Death (May 14, 2002) | August 28, 2001 | |
 | Hansen, Robert Christian | The Butcher Baker | February 15, 1939 Estherville, Iowa, United States | 1971 - June 13, 1983 | 17 killed, 31+ raped | 461 years in prison without parole | October 27, 1983 |
 | Harding, Donald Eugene | March 1, 1949 Goodrich, Arkansas, United States | December 1979 - January 1980 | 6-7+ | Death | January 26, 1980 | |
 | Hargrave, Lee Roy | The Lidocaine Killer | 1954 (age 69–70) Virginia, United States | 1971 - 1974 | 1 - 24 | Life imprisonment | 1974 |
 | Harpe, Wiley | The Bloody Harpes | Before 1770 (probably c. 1750) Scotland, Kingdom of Great Britain, or Orange County, Province of No | Late 18th century | 39-50+ | Death (February 8, 1804) | |
 | Harrington, Paul | Detroit, Michigan, United States | 1975 - 1999 | 5 | Not guilty by reason of insanity (1975), Life imprisonment (2000) | 1999 | |
 | Harris, Carl | 1936 (age 88–89) Wayne County, Georgia, United States | July - November 1993 (confirmed) | 3 - 5 | Life imprisonment without parole (x3) | December 1993 | |
 | Harris, Dewayne Lee | The Seattle Jungle Killer, The Seattle Shoelace Slasher, Chilly Willy | 1963 (age 61–62) Seattle, Washington, United States | 1997 - 1998 | 3+ | 94 years imprisonment | 1998 |
 | Harris, Jeremy Rashaud | 1990 (age 34–35) Red Oak, Texas, United States | 2020 | 4 | Life imprisonment | 2020 | |
 | Harris, Michael Darnell | March 7, 1963 (age 61) Muskegon Heights, Michigan, United States | 1981 - 1982 | 4-10 | Life imprisonment (x4) | December 7, 1982 | |
 | Harris, Ralph | The Southside Strangler | July 11, 1972 (age 52) | 1992 - 1995 | 6 | Death; commuted to life imprisonment | August 29, 1995 |
 | Harris, Robert Wayne | February 28, 1972 Dallas County, Texas, United States | 1999 - 2000 | 6 | Death | March 21, 2000 | |
 | Harrison, Kenneth Francis | The Giggler | September 4, 1938 Boston, Massachusetts, United States | 1967 - 1969 | 4 | Life imprisonment (x4) | January 7, 1970 |
 | Harrison, Lester | 1922 Chicago, Illinois, United States | 1951; 1970 - 1973 | 5-7 | Involuntary commitment | August 13, 1973 (For the final time) | |
 | Hart, Otha Harrison | November 20, 1949 United States | 1979 | 4 | unknown | 1984 | |
 | Harvey, Donald | April 15, 1952 Butler County, Ohio, United States | 1970 - 1987 | 37 convicted, 40-57 estimated, 87 alleged | 28 consecutive life sentences plus $270,000 in fines | April 6, 1987 | |
 | Hassell, George Jefferson | July 5, 1888 Smithville, Texas, United States | 1917 - 1926 | 13 | Death | December 23, 1926 | |
 | Hatcher, Charles Ray | July 16, 1929 Mound City, Missouri, United States | 1961 - 1982 | 2-16 | Life imprisonment | July 30, 1982 | |
 | Haugh, Oliver Crook | April 12, 1871 Dayton, Ohio, United States | 3-13+ | Death (1905) | 1905 | ||
 | Hauptreif, Anna | June 22, 1894 Niederwald, Texas, United States | 1921 - 1923 | 5 | N/A (died before trial) | 1923 | |
 | Hausner, Dale Shawn | February 4, 1973 | May, 2005 - July 30, 2006 | 8 killed; 19 injured | Death | August 3, 2006 | |
 | Hayes, Robert Tyrone | The Daytona Beach Serial Killer | March 12, 1982 (age 42) West Palm Beach, Florida, United States | December, 2005 - March, 2016 | 5 - 7+ | September 15, 2019 | |
 | Hazzard, Linda Laura | The Starvation Doctor | December 18, 1867 Carver, Minnesota, United States | 15+ | 2 to 20 years in prison | ||
 | Heidnik, Gary Michael | November 22, 1943 Eastlake, Ohio, United States | November 26, 1986 - March 19, 1987 | 6 kidnapped, 2 killed | Death (July 1, 1988) | March 24, 1987 | |
| Heller, Isaac | May 2, 1809 Dauphin County, Pennsylvania, United States | 1830 - 1836 | 5 | February 1836 | ||
 | Helm, Levi Boone | The Kentucky Cannibal | January 28, 1828 Lincoln County, Kentucky, United States | 1850 - 1864 | 11+ | Death | |
 | Henley, Elmer Wayne | May 9, 1956 (age 68) Houston, Texas, United States | March 24, 1972 - August 8, 1973 | 7 (including Corll) | Life imprisonment 594 years (six consecutive 99-year terms)[1] | August 8, 1973 | |
 | Henriquez, Alejandro | The Bronx Serial Killer | 1961 (age 63–64) | 1988 - December 5, 1990 | 3 - 6 | December 5, 1990 | |
 | Heppermann, Emma Sarana | The St. Louis Black Widow | June 20, 1883 Steelville, Missouri, United States | 1925 - 1940 | 1 - 7 | Life imprisonment | 1940 |
 | Hermann, Francis | The Priestly Butcher | c. 1851 England, United Kingdom | 1890-1896 | 2-8 | Never apprehended | |
 | Hernandez, Alexander | The Valley Killer | May 12, 1980 (age 44) Sylmar, Los Angeles, California, United States | March - August 2014 | 5 killed, 11 survived | Life imprisonment | August 24, 2014 |
 | Hernandez, Ramon Torres | November 8, 1971 Texas, United States | 1994 - 2001 | 3-5+ | Death | April 4, 2001 | |
 | Herzog, Loren Joseph | The Speed Freak Killer | December 8, 1965 Linden, California, United States | 1984 - 1999 | 4-19 | March 17, 1999 | |
 | Heuermann, Rex | The Long Island Serial Killer, LISK, Craigslist Ripper, Gilgo Killer, Gilgo Beach Killer, Seashore Serial Killer, The Manorville Butcher (possibly) | September 13, 1963 (age 61) [4] New York, United States (suspect) | c. 1996 - c. 2010 and possibly up until 2013 | 10-16 | July 13, 2023 (Heuermann) | |
 | Hickey, John Frank | The Postcard Killer | October 29, 1865 Lowell, Massachusetts, United States | 1883 - 1911 | 3 | 1912 | |
 | Hickson, Monroe | July 8, 1908 Aiken County, South Carolina, United States | April - September 1946 | 4 | Life imprisonment | August 8, 1957 | |
 | Highway Killer, New Bedford | New Bedford Highway Killer | March 1988 - April 1989 | 11 | |||
 | Hill, Clarence | The Duck Island Killer | 1929 United States | 1938 - 1940 | 6 | Life imprisonment (December 29, 1944) | January 28, 1944 |
 | Hill, Ivan Jerome | The 60 Freeway Killer, The Southside Slayer | March 30, 1961 (age 63) Los Angeles, California, United States | 1979 - 1994 | 9+ | Death | 2003 |
 | Hill, Walter | February 7, 1935 Midway, Alabama, United States | 1952 - 1977 | 5 | 30 years imprisonment, Death | ||
 | Hilton, Gary Michael | The National Forest Serial Killer | November 22, 1946 (age 78) Atlanta, Georgia, United States | 2007 - 2008 (known) | 4+ | January 5, 2008 | |
 | Hitchhiker Killer, The Santa Rosa | 1972 - 1973 | 7+ | ||||
 | Hittle, Daniel Joe | March 1, 1950 Perry County, Indiana, United States | 1973 / 1989 | 7 | Death (Texas), 30 years (Minnesota) | November 15, 1989 | |
 | Hlatky, Anna | 1893 Pennsylvania, United States | 1927 - 1928 | 4 | 7-24 years imprisonment | 1928 | |
 | Hoch, Johann Otto | The Bluebeard Murderer, Chicago Bluebeard | 1855 Horrweiler, Grand Duchy of Hesse, Western Germany | 1890 - 1905 | 1-50+ | Death | |
 | Hodges, Henry Eugene | August 16, 1966 (age 58) Florida, United States | 1988 - 1990 | 3 - 9 | Death (Tennessee), Life imprisonment (Georgia) | May 17, 1990 | |
 | Hohenberger, Robert Carl | 1943 Indiana, United States | March - May 1978 | 5 (not confirmed, died before trial) | Life imprisonment | ||
 | Hollman, Frederick William | 1859 Lenars, Brandenburg, Germany | June - December 1896 | 1 - 5+ | Death | 1897 | |
 | Holman, Richard | The .22 Caliber Killers | August 20, 1961 (age 63) Illinois, United States | 1978 - 1979 | 4-9+ | Life without parole plus 75 years | |
 | Holmes, Henry Howard | May 16, 1861 Gilmanton, New Hampshire, United States | December 25, 1891 - October 25, 1894 (confirmed) | 10-34 killed (200+ estimated/possible) | Death | 1894 | |
 | Holston, Leon Corneal | April 20, 1950 Pompano Beach, Florida, United States | 1964 - 1966 | 3 - 4 | 1964 | ||
 | Hopewell, Raymont | June 11, 1971 (age 53) | 1999 - 2005 | 5 | Life imprisonment | September 20, 2005 | |
 | Hopkins, John William | The Mohawk Valley Ripper, The Johnstown Ripper | June 3, 1953 Johnstown, New York, United States | 1972 - 1978 | 3+ (2 convictions) | Life imprisonment (x3) | August 16, 1979 |
 | Horne, Thomas | United States | ???? - 2001[note 1] | 5 | N/A (died before crimes were discovered) | N/A | |
 | Horton, Wayne Donald | January 26, 1950[citation needed ] Las Vegas, Nevada, United States | 1972 - 1976 | 4 | Life imprisonment | August 1975 | |
 | Howard, Angelo | March 17, 1976 (age 48) Cincinnati, Ohio, United States | 2002 - 2003 | 5 | 909 years imprisonment | 2003 | |
 | Howell, William Devin | Sick Ripper | February 11, 1970 (age 54) Hampton, Virginia, United States | January - October 2003 | 7 | 360 years in prison | May 2005 |
 | Hoyt, Waneta Ethel | May 13, 1946 Richford, New York, United States | 1965 - 1971 | 5 | Life imprisonment | 1994 | |
 | Hubbard, Larry D. | September 2, 1952 United States Virgin Islands, United States | 1980 - 2000 | 4+ | May 2007 | ||
 | Hughes, Mervin Ray | The Serial Shooter | 1963 or 1964[citation needed ] | 1986 - 1999 | 3-4+ | Death | January 30, 1999 |
 | Hughes, Michael Hubert | Southside Slayer | 1957 (age 67–68) Michigan, United States | 1986 - 1993 | 7+ | Death | 1993 |
 | Hughes, Philip Joseph | The East Bay Strangler | January 29, 1948 (age 76) Fresno County, California, United States[1] | 1972 - 1975 | 3+ | Life imprisonment | 1979 |
 | Hunter, Richard Louis | 1955 (age 68–69) Atlanta, Georgia, United States | March - April 1986 | 4 | Life imprisonment | April 20, 1986 | |
 | Huntsman, Megan | February 26, 1975 (age 49) | 1996 - 2006 | 6 | 30 years to life in prison | April 2014 | |
 | I-70, Strangler | The I-70 Strangler | 1980 - 1991 | 12+ | |||
 | Ingle, Phillip Lee | August 7, 1961 Lincoln County, North Carolina, United States | 1991 | 4 | Death | ||
 | Irvin, Leslie | The Mad Dog Killer | April 2, 1924 Evansville, Indiana, United States | 1954 - 1955 | 6+ | April 8, 1955 | |
 | Ivins, Bruce | Anthrax Killer|Amerithrax Killer | 1946-04-22 | 2001 | 5 | Died before arrest | |
 | Jablonski, Phillip Carl | January 3, 1946 Joshua Tree, California, United States | 1978 - 1991 | 5 | Death | April 28, 1991 | |
 | Jackson, Anthony J. | The Hitch-Hike Murderer | 1939 (age 85–86) Boston, Massachusetts, United States | September - December 1972 | 5+ | December 26, 1972 | |
 | Jackson, Charles | The East Bay Slayer | February 12, 1937Louisiana, United States | 1975 - 1982 | 8+ | Life imprisonment | |
 | Jackson, Elton Manning | The Hampton Roads Killer | 1956 (age 68–69) Norfolk, Virginia, United States | 1980s - 1996 | 1 - 12 | Life imprisonment (October 27, 1998) | May 6, 1997 |
 | Jackson, Freddrick Sanjuan | July 11, 2004 (age 20) | 2020 - 2022 | 4 | 50 years imprisonment | April 12, 2022 | |
 | Jackson, Homer Lee | December 18, 1959 Berkeley, California, United States | 1983 - 1993 | 4–5+ | 6 years and 3 months with time served | October 15, 2015 | |
 | Jackson, Mary Jane | Bricktop, Mary the Red, Red Mary | 1836 New Orleans, Louisiana, United States | 1856 - 1861 | 4 killed, 25 survived | 10 years (1861) | 18591861 |
 | Jackson, Odell | The Alabama Axe Syndicate | Alabama, United States | 1919 - 1924 | 8+ | Death; commuted to life imprisonment | 1924 |
 | Jackson, Pearl | The Alabama Axe Syndicate | Alabama, United States | 1919 - 1924 | 8+ | Death; commuted to life imprisonment | 1924 |
 | Jackson, Ray Shawn | Gillham Park Strangler | August 28, 1967 (age 57) United States | September 1989 - April 1990 | 6 | Life imprisonment | April 1990 |
 | Jackson, Ray Van Buren | The Angel of Death, Professor | March 1, 1870 Missouri, United States | 0-6 | |||
 | Jackson, Vickie Dawn Carson | February 13, 1966 (age 58) Montague County, Texas, United States | December 2000 - February 2001 | 10+ | Life imprisonment | July 16, 2002 | |
 | Jackson, William Perry | January, 1955 (age 69–70) Milwaukie, Oregon, United States | May 21 - August 10, 1980 | 5 (one as accomplice) | August 22, 1980 | ||
| Jahns, Frederick William | February 2, 1848 Saxony-Anhalt, Germany | 1900s - 1909 | 3 - 11+ | Death (Washington) | 1909 | |
 | Jameswhite, Richard | Babyface | 1973 (age 50–51) | 1992-1994 | 15 | Life imprisonment | April 28, 1994 |
 | Jenkins, James Gilbert | 1836 North Carolina, United States | 1850s - 1864 | 1 - 18 | Death (1883) | 1864 | |
 | Jennings, Desmond Domnique | October 4, 1971 Tarrant County, Texas, United States | 1993 | 5-20 | Death | ||
 | Jennings, Wilbur Lee | The Ditchbank Murderer, The Ditch-Bank Killer | 1940 Shreveport, Louisiana, United States | 1981 - 1984 | 6+ (4 convictions) | Death | September 13, 1984 |
 | Jesperson, Keith Hunter | The Happy Face Killer | April 6, 1955 (age 69) Chilliwack, British Columbia, Canada | January 23, 1990 - March 16, 1995 | 8 (confirmed) | Life imprisonment (without parole) | March 30, 1995 |
 | Johnson, Matthew Steven | May 24, 1963 (age 61) Hartford, Connecticut, United States | 2000 - 2001 | 3-5 | 180 years in prison | January 13, 2002 | |
 | Johnson, Melvin | 1958 Illinois, United States | 1984 - 1988 | 4+ | |||
 | Johnson, Michael | 1986 (age 38–39) South Side, Chicago, Illinois, United States | 2008 - 2010 | 4+ | May 30, 2010 | ||
 | Johnson, Milton | The Weekend Murderer, The Morning murder | May 15, 1950 (age 74) Joliet, Illinois, United States | June - August 1983 | 10+ | Death, commuted to life without parole | March 9, 1984 |
 | Johnson, Vincent | The Brooklyn Strangler, The Williamsburg Strangler | January 6, 1969 (age 55) Brooklyn, New York, United States | August 26, 1999 - June 7, 2000 | 5-6 | Life imprisonment without parole | August 5, 2000 |
 | Jones, Andre Vernell | July 22, 1956 (age 68) East St. Louis, Illinois, United States | 1978 – 1979[note 1] | 5–8 | Death; commuted to life imprisonment | May 4, 1979 | |
 | Jones, Daniel Oliver | September 26, 1969 (age 55) Kansas City, Missouri, United States | 1998 - 2001 | 4 | Life imprisonment without parole | March 8, 2001 | |
 | Jones, Genene Anne | July 13, 1950 (age 74) Texas, United States | 1970 - 1982 | 2 confirmed; possibly over 60 | 99 years with triple credit | 1982 | |
 | Jones, Henry Lee | August 23, 1963 (age 61) Cleveland, Mississippi, United States | August 22 - 26, 2003 (confirmed) | 3-4+ | September 17, 2003 | ||
 | Jones, Jeremy Bryan | April 12, 1973 (age 51) Miami, Oklahoma, United States | 1992 - 2004 (alleged) | 1–21 | Death | September 21, 2004 (Final time) | |
 | Jones, Robert Glen | December 25, 1969 | 1996 | 7 | Death | ||
| Jones, Syd | Alabama, United States (presumed) | 1900s - 1914 | 13 | Death | ||
 | Joubert, John Joseph | The Nebraska Boy Snatcher | July 2, 1963 Lawrence, Massachusetts, United States | August 22, 1982 - December 2, 1983 | 3+ | Death | January 12, 1984 |
 | Joyner, Anthony | May 26, 1962 (age 62) Philadelphia, Pennsylvania, United States | January - July 1983 | 6-18 | Life imprisonment | August 1, 1983 | |
 | Judy, Steven Timothy | May 24, 1956 Indianapolis, Indiana, United States | April 28, 1979 (Chasteen murders)1973 - 1979 | 4 confirmed, 7 confessed, 10+ suspected | Death (February 25, 1980) | May 1979 | |
 | Junco, Francisco Del | August 3, 1957 (age 67) Cuba | 1995 - 1996 | 4 | Life imprisonment | June 3, 1996 | |
 | Kaczynski, Theodore John | The Unabomber | May 22, 1942 Chicago, Illinois, United States | May 25, 1978 - April 24, 1995 | 3 killed, 23 Injured | 8 consecutive life sentences without the possibility of parole | April 3, 1996 |
 | Kadamovas, Jurijus | October 22, 1966 (age 58) Lithuanian SSR, Soviet Union | October 2001 - January 2002 | 5 | Death; commuted to life imprisonment | February 2002 | |
 | Kalina, Michele | 1966 (age 58–59) | 1996-2010 | 5 | 20 to 40 years in prison | October 26, 2010 | |
 | Kaprat, Edwin Bernard | The Granny Killer | September 21, 1964 New York City, New York, United States | August 1991 - September 1993 | 6 | Death | October 8, 1993 |
 | Kearney, Patrick Wayne | The Trash Bag Killer, The Freeway Killer | September 24, 1939 (age 85) East Los Angeles, California, United States | 1962 - March, 1977 | 21 (suspected 43+) | Life imprisonment (x21) | July 1, 1977 |
 | Kelly, Alvin Andrew | March 14, 1951 Culberson County, Texas, United States | April - June 1984 | 4 | March 31, 1990 | ||
 | Kelly, Kate | The Kelly Friends, The Kelly Gang | Pennsylvania, United States | August - December 1887 | 11 | Died before she could be convicted | January 4, 1888 |
 | Kelly, Kit | The Kelly Friends, The Kelly Gang | Pennsylvania, United States | August - December 1887 | 11 | Died before she could be convicted | January 4, 1888 |
 | Kelly, William | The Kelly Friends, The Kelly Gang | Pennsylvania, United States | August - December 1887 | 11 | Died before he could be convicted | January 4, 1888 |
 | Kemper, Edmund Emil | The Co-ed Killer, Co-ed Butcher, Ogre of Aptos, The Mad Titan | December 18, 1948 (age 76) Burbank, California, United States | 1964 - 1973 | 10 | Life imprisonment (x8) (concurrent) | August 27, 1964 (first arrest)April 24, 1973 (second arrest) |
 | Kennedy, Charles | 1860s - 1870 | 21+ | N/A (died before trial could conclude) | 1870 | ||
 | Keyes, Israel | January 7, 1978 Richmond, Utah, United States | 1996 (unconfirmed) - 2012 | 3-11+ | March 13, 2012 | ||
 | Kibbe, Roger Reece | I-5 Strangler | May 21, 1939 San Diego County, California, United States[1] | September 11, 1977 - September 17, 1987 | 7 (convicted) | Life imprisonment | November 29, 1987 |
 | Killer, The Tube Sock | The Tube Sock Killings, The Tube Sock Murders, Mineral, Washington murders | August 12, 1985 - December 12, 1985 (possibly as early as March 1985; undetermined) | 4-6 | |||
 | Killer, Colonial Parkway | Colonial Parkway Murders | October 1986 - September 1989 | 8+ | |||
 | Killer, The Salish Sea | 2007 — present | 21 feet discovered as of the latest reports, though not all are definitively linked to foul play | ||||
 | Killer, The Cumminsville | • The Cumminsville Killer • The Cumminsville Ripper • The Cincinnati Streetcar Murders • Cincinnatis Jack the Ripper • The Slouch Hat Man • The Man Gorilla | 1904 - 1910 | 5 | |||
 | Killer, Gulf | Gulf Killer, Red Light Murders, The Dale Mabry Strip Murders | c. October 15, 1971 – c. January 5, 1979 | 16 (14 women, 2 men) | Wirtjes convicted in 1979; other(s) unapprehended | ||
 | Killer, Bigfoot | The Bigfoot Killer, The Cass Ripper | February - October 1975 | 7 | |||
 | Killer, I-45 | I-45 Killer, Texas Killing Fields | 30 | ||||
 | Killer, I-70 | The I-70 Killer, I-35 Killer | April 8 - May 7, 1992 (possibly January 15, 1994) | 6-9+ | |||
 | Kimball, Earl | 1915 Petaluma, California, United States | 1920s - 1934 | 2 - 21 | Death | 1934 | |
 | Kimball, Scott Lee | September 21, 1966 (age 58) Boulder, Colorado, United States | 2003 - 2004 | 4+ | 70 years | ||
 | Kimbrough, Petrie | 1896 Pembroke, Kentucky, United States | 1912 - 1920 | 4 | Death | ||
 | Kinlaw, Arthur | November 7, 1953 (age 71) | 1982 - 1984 | 4 | Life imprisonment | ||
 | Kirkland, Anthony | September 13, 1968 (age 56) United States | 1987; 2006 - 2009 | 5 | Death | March 8, 2009 | |
 | Kizer, John Randolph | January 11, 1871 Dalton, Randolph County, Arkansas, United States | 1925 - 1936 | 11 | Died before trial | 1936 | |
 | Klimek, Ottilie | 1876 Poland | 1914 - 1921 | 5-7 | Life Imprisonment | ||
 | Klutuk, | The Mad Trapper of Bristol Bay | c. 1893 near Nushagak River, Alaska, United States | 1919 - 1929 | 20+ | 1929 | |
 | Klvana, Milos | 1941 (age 83–84) Czechoslovakia | 1982 - 1986 | 8 | Life imprisonment | 1986 | |
 | Knapp, Alfred Andrew | The Hamilton Strangler, The Ohio Strangler, The Indianapolis Wife Strangler | 1863 Terre Haute, Indiana, United States | 1894 - 1902 | 5+ | Death | February 25, 1903 |
 | Knight, Thomas Otis | February 4, 1951 Fort Pierce, Florida, United States | 1974, 1980 | 4 | Death | December 24, 1974 | |
 | Knighton, Robert Wesley | February 5, 1941 Springfield, Missouri, United States | 1973 and 1990 | 5 | Death | January 9, 1990 | |
 | Knoppa, Anthony Michael | 1948 (age 76–77) United States | June - November 1971 | 1 - 9 | 50 years imprisonment | 1971 | |
 | Knowles, Paul John | The Casanova Killer | April 17, 1946 Orlando, Florida, United States | July 26, 1974 - November 16, 1974 | 18 (suspected 20–35+) | November 17, 1974 | |
 | Kohlhepp, Todd Christopher | March 7, 1971 (age 53) Fort Lauderdale, Florida, United States | November 6, 2003 - August 31, 2016 | 7+ | Seven consecutive life sentences | November 3, 2016 | |
 | Kokoraleis, Andrew | The Ripper Crew, The Chicago Rippers | July 18, 1963 Villa Park, Illinois, United States | May 23, 1981 - October 8, 1982 | 18 | Death | November 5, 1982 |
 | Kokoraleis, Thomas | The Ripper Crew, The Chicago Rippers | July 10, 1960 (age 64) Villa Park, Illinois, United States | May 23, 1981 - October 8, 1982 | 18 | Life imprisonment; reduced to 70 years | November 5, 1982 |
 | Kondro, Joseph Robert | The Longview Serial Killer | 1960 Michigan, United States | 2 convictions, many more strongly suspected | 55 years in prison | 1997 | |
 | Kraft, Randy Steven | The Scorecard Killer, The Southern California Strangler, The Freeway Killer | March 19, 1945 (age 79) Long Beach, California, United States | September 20, 1971 - May 13, 1983 | 16 (suspected of up to 67) | Death | May 14, 1983 |
 | Krajcir, Timothy Wayne | November 28, 1944 (age 80) West Mahanoy Township, Pennsylvania, United States | 1977 - 1982 | 9 | 13 consecutive life terms | August 29, 2007 | |
 | Krause, Edward | Germany | 1912 - 1915 | 9+ | Death | 1915 | |
 | Kuklinski, Richard Leonard | The Iceman | April 11, 1935 Jersey City, New Jersey, United States | 1949 - 1986 | 8-250 | Life imprisonment (x2) | |
 | Ladd, Robert Charles | March 19, 1957 Dallas, Texas, United States | 1978 - 1996 | 4 | Death (Garner, August 29, 1997), 40 years (Thompson), 20 years (arson) | September 25, 1996 (final time) | |
 | Lagrone, Edward Lewis | March 3, 1957 Fort Worth, Texas, United States | 1976 - 1991 | 4-6 | May 30, 1991 | ||
 | Lake, Leonard Thomas | October 29, 1945 San Francisco, California, United States | 1983 - 1985 | 11 confirmed, suspect to be 25 | June 2, 1985 | ||
 | Lalaurie, Marie Delphine | Madame Blanque | March 19, 1787 New Orleans, Spanish Louisiana | 1831 - 1834 | Exact number unknown | Fled before she could be bought to justice. | |
 | Lamb, Herman Edward | January 18, 1946Sawsilla, Oklahoma, United States | 1977 - 1985 | 2 - 7 | 100 years imprisonment | 1989 | |
 | Lamont, Lawrence Frank | 1946 United States | 1972 | 4 - 7+ | Life imprisonment | 1972 | |
 | Lane, Adam Leroy | The Highway Killer | August 7, 1964 (age 60) Jonesville, North Carolina, United States | 2007 | 2+ | July 30, 2007 | |
 | Lanham, Harry Andrew | 1948 Genoa, Ohio, United States | 1960s - 1971 | 2 - 10 | 25 years imprisonment | 1971 | |
 | Lannon, Sean Michael | 1974 (age 49–50) United States | January - April 2021 | 5 - 16 | 2021 | ||
 | Lapage, Joseph | The French Monster | 1838 Quebec, Canada | 1867 - 1875 | 4 | Death | October 14, 1875 |
 | Larette, Anthony Joe | October 1, 1951 | 1976 - 1980 (confirmed) | 16-31 (one conviction) | Death | August 7, 1980 | |
 | Laskey, Posteal | Cincinnati Strangler | 1938 Cincinnati, Ohio, United States | 1965 - 1966 | 7 (one conviction) | Death, commuted to life imprisonment by Furman v. Georgia | December 9, 1966 |
 | Laundenberg, Adolph Theodore | The Santa Strangler, The Santa Claus Strangler | June 13, 1926 Lexington, Kentucky, United States | 1972 - 1975 | 4-6 | Life imprisonment | September 5, 2003 |
 | Leaver, Frank J. | September 7, 1912 McCracken, Kentucky, United States | 1933 - 1964 | 2 – 8+ | Life imprisonment | ||
 | Lee, Derrick Todd | The Baton Rouge Serial Killer | November 5, 1968 St. Francisville, Louisiana, United States | August 23, 1992 - March 3, 2003 | 7+ | Death | May 27, 2003 |
 | Lee, Euel | 1872 Virginia, United States | 1918 - 1931 | 4 - 6 | Death (Maryland) | 1931 | |
 | Lefthand, Michael Shane | July 27, 1960 (age 64) Duluth, Minnesota, United States | 1980 - 1990 | 3 - 4+ | Life imprisonment (North Dakota and Minnesota), Acquitted (South Dakota) | October 11, 1990 | |
 | Legg, Samuel William | August 19, 1969 (age 55) Brunswick, Ohio, United States | 1990 - 1997 | 3–4+ | |||
 | Lent, Lewis Stephen | 1950 (age 74–75) Massachusetts, United States | 1983 - 1994 | 2 - 8+ | Life imprisonment | 1994 | |
 | Lewingdon, Gary James | The .22 Caliber Killer | February 14, 1940 Ohio, United States | 1977 - 1978 | 10 | Life imprisonment | December 8, 1978 |
 | Lewingdon, Thaddeus Charles | The .22 Caliber Killer | December 22, 1936 Ohio, United States | 1977 - 1978 | 9 | Life imprisonment | December 11, 1978 |
 | Lewis, Ethel | 1880 (age 143–144) United States | 1920s - 1929 | 1 - 7 | Involuntary commitment | 1929 | |
 | Lewis, Gerald Patrick | August 10, 1965 Jacksonville, Florida, United States | 1987 - 1998 | 6+ | Death (Alabama and Georgia) | April 14, 1998 | |
 | Lewis, Terrell Maurice | August 16, 1984 (age 40) Jacksonville, Florida, United States | March - April 2020 | 4 | April 2020 | ||
 | Lgbtq Murderer, Jacksonville | 2018 | 4+ | ||||
 | Likens, David Allen | July 12, 1949 Tucson, Arizona, United States | 1974 - 1978 | 4 - 6 | 5-years-to-life (Thorpe), N/A (died before trial) [serial murders] | October 12, 1978 | |
 | Lindahl, Bruce Everitt | January 29, 1953 St. Charles, Illinois, United States | 1976 – 1981, 1974 (possible) | 3 - 12+ | None | N/A | |
 | Lindloff, Louise | Germany | 1905 - 1912 | 1 - 10 | 25 years imprisonment | 1912 | |
 | Lindsey, William Darrell | March 18, 1935 Palatka, Florida, United States | 1988 - 1996 | 7–25 (six convictions) | 30 years imprisonment | December 1996 | |
 | Lipscomb, Nathaniel | The Dawn Strangler, The Early Morning Bandit | 1931 Gaffney, South Carolina, United States | 1958 – 1959 (possibly 1951) | 3-4 | Death | April 17, 1959 |
 | Lisenba, Major Raymond | Rattlesnake James, The Rattlesnake Murderer | March 6, 1894 Hale County, Alabama, United States | 1932 - 1941 | 1 - 3 | Death | 1929 |
 | Little, Jerry Lee | 1956Marks, Mississippi, United States | 1985 - 1988 | 4 | Life imprisonment | August 4, 1988 | |
 | Little, Samuel | The Choke and Stroke Killer | June 7, 1940 Reynolds, Georgia, United States | 1970 - 2005 (confirmed)1970 - 2012 (possible) | 60 confirmed, 93 confessed | Four life sentences without the possibility of parole | September 5, 2012 |
 | Long, David Martin | July 15, 1953 Tom Green County, Texas, United States | 1978 - 1986 | 5 - 7 | Death | October 24, 1986 | |
 | Long, Neal Bradley | The Shotgun Slayer, The Midnight Slayer | September 19, 1927 Campton, Kentucky, United States | 1972 - 1975 | 4-7+ | Life imprisonment (x4) | September 19, 1975 |
 | Long, Robert Joseph | The Classified Ad Rapist, The Adman Rapist | October 14, 1953 Kenova, West Virginia, United States | March 27, 1984 - November 11, 1984 | 10 | Death | November 16, 1984 |
 | Lucas, David Allen | 1956 (age 68–69) Philippines | 1979 - 1984 | 3 - 6 | Death (September 19, 1989) | December 1984 | |
 | Lucas, Henry Lee | The Confession Killer | August 23, 1936 Blacksburg, Virginia, United States | 1960 - 1983 | 3 confirmed, 11 convicted, 8 disputed, claimed hundreds | Death; commuted to life imprisonment | June 11, 1983 |
 | Lumbrera, Diana | November 21, 1958 (age 66) Texas, United States | 1976 - 1990 | 4 - 7 | Life imprisonment | 1990 | |
 | Lunz, Christopher David | September 26, 1967 New York, United States | 2003 - 2009 (confirmed) | 3-20 | Life imprisonment | December 2005 | |
 | Lyles, Anjette Donovan | August 23, 1925 Macon, Georgia, United States | 1952 - 1958 | 4 | Death; commuted to involuntary commitment | May 6, 1958 | |
 | Lyles, Kendrell Lavar | 1985 Texas, United States | April - June 2019 | 1 - 4+ | 48 years imprisonment (Booker murder) | 2019 | |
 | Lynch, Franklin | The Day Stalker | July 21, 1955 (age 69) [1] Alameda County, California, United States | June - August 1987 | 3-13 | Death | October 14, 1987 |
 | Macek, Richard Otto | The Mad Biter, The Bite Mark Murderer, The Bite Mark Killer | 1948 Chicago, Illinois, United States | August - September 1974 | 3+ | Life imprisonment (WI), 200-to-400 years imprisonmnet (IL) | December 5, 1975 |
 | Macon, Matthew Emmanuel | September 8, 1979 (age 45) Lansing, Michigan, United States | 2004 - 2007 | 6+ | August 28, 2007 | ||
 | Madondo, Muziwokuthula | 1978 (age 45–46) Durban, KwaZulu-Natal, South Africa | February - March 2011 | 4 | March 2011 | ||
 | Magliolo, Michael Scott | July 8, 1960 (age 64) Jefferson County, Texas, United States | 1988 - 1991 | 3 – 12 | Life imprisonment | 1991 | |
 | Majors, Orville Lynn | April 2, 1961 Linton, Indiana, United States | 1993 - 1995 | 6 - 130 | 360 years in prison | 1997 | |
 | Malone, Kelvin Shelby | January 10, 1961 Seaside, California, United States | March 10–24, 1981 | 4+ (3 convictions) | Death | March 24, 1981 | |
 | Malveaux, John Peter | 1964 Opelousas, Louisiana, United States | January 31 - October 29, 1997 | 4-5 | Life imprisonment without parole (x4) | November 4, 1997 | |
 | Malvo, Lee Boyd | The Beltway Sniper, The D.C. Sniper | February 18, 1985 (age 39) Kingston, Jamaica | February 16, 2002 - October 23, 2002 | 10 | Life without parole, reduced to life with parole (Virginia) | October 24, 2002 |
| Manriquez, Abelino | 1957 Mexico | 1989 - 1990 | 7 | Death; commuted to life imprisonment | 1990 | |
 | Mansfield, Billy | 1956 (age 68–69) Grand Rapids, Michigan, United States | 1975 - 1980 | 5+ | October 26, 1981 | ||
 | Marauder , Night | 1919 - 1926 | 8+ | N/A | |||
 | Marcus, Jerry | 1951 (age 73–74) Tuskegee, Alabama, United States | 1971 - 1987 | 2 - 15 | Life imprisonment (AL, MS) | April 17, 1987 | |
 | Marlow, James Gregory | The Folsom Wolf | 1956 (age 68–69) | July - November 1986 | 5 | Death (August 30, 1989) | November 14, 1986 |
 | Martin, Deangelo Kenneth | May 30, 1985 (age 39) | 2018 - 2019 | 4-5 | A minimum of 45 years in prison and up to 70 years | June 7, 2019 | |
 | Martin, Lee Roy | The Gaffney Strangler | April 25, 1937 Gaffney, South Carolina, United States | 1967 - 1968 | 4 | Life imprisonment (x4) | February 15, 1969 |
 | Martin, Rhonda Belle | 1907 | 1937–1951 | 6 | |||
 | Martinez, Jose Manuel | El Mano Negra | 1962 Fresno, California, United States | 1978 - 2013 | 12 convicted (36 claimed) | Life imprisonment (x10) | May 17, 2013 |
 | Martini, John | July 30, 1930 | 1977 - 1989 | 6 | Death (New Jersey; December 12, 1990) | January 1989 | |
 | Marx, Gustave | 1885 Chicago, Illinois, United States | 8 | Death (1904) | 1904 | ||
 | Masini, Frank | April 14, 1944 (age 80) [1] Naples, Italy | 1991 - 1992 | 4 | Life imprisonment (minimum of 60 years) | December 22, 1992 | |
 | Mason, David Edwin | December 2, 1956 Georgia, United States | March 6, 1980 - May 8, 1982 | 5-6 | Death (January 27, 1984) | February 4, 1981 | |
 | Matthews, Eric Dawon | May 3, 1974 (age 50) Indianapolis, Indiana, United States | 1994 - 1998 | 4 | Life imprisonment (x2) | May 20, 1998 | |
 | Maury, Robert Edward | The Tipster Killer | February 24, 1958 (age 66) Del Norte County, California, United States | 1985 - 1987 | 3-5+ | Death | November 7, 1987 |
 | Maust, David Edward | April 5, 1954 Connellsville, Pennsylvania, United States | 1974 - September 10, 2003 | 5 | Life imprisonment | December 10, 2003 | |
 | Mays, Reta Phyllis | June 16, 1975 (age 49) Reynoldsville, West Virginia, United States | 2017 - 2018 | 8+ | Life imprisonment (Seven consecutive life terms plus 20 years) | July 14, 2020 | |
| Mcclam, Luther | 1917 South Carolina, United States | 1940s - 1944 | 4 | Life imprisonment (South Carolina), Death (Maryland) | 1944 | |
 | Mccrary, Carolyn | Texas, United States | 1971 - 1972 | 22 | Life imprisonment | 1972 | |
 | Mccrary, Sherman | Texas, United States | 1971 - 1972 | 22 | Life imprisonment | 1972 | |
 | Mcduff, Kenneth Allen | The Broomstick Killer, The Broomstick Murderer | March 21, 1946 Rosebud, Texas, United States | August 6, 1966 - March 1, 1992 | 9-14+ | Death, commuted to life with parole (1966), Death (1993) | May 4, 1992 (final time) |
 | Mcfadden, Gerald Walter | The Animal | March 21, 1948 Haskell County, Texas, United States | 1973 - 1986 | 4 (confirmed and known) | Death | |
 | Mcghee, Timothy Joseph | The Monster of Atwater | April 27, 1973 (age 51) Los Angeles, California, United States | 1997 - 2001 | 12 (3 convictions) | Death + 75 years to life | February 11, 2003 |
 | Mcginnis, Virginia Rearden | January, 1937 Ithaca, New York, United States | 1972 - 1987 | 1-4 | Life imprisonment (March 20, 1992 for the murder of Deana Hubbard Wild.) | September 15, 1989 | |
 | Mcgray, Michael Wayne | July 11, 1965 (age 59) Collingwood, Ontario Canada | 1985 - 1998 | 7-18+ | Life imprisonment | ||
 | Mcgregor, Edward George | March 29, 1973 (age 51) Missouri City, Texas, United States | 1990 - 2006 | 4 | Life imprisonment (September 6, 2010) | May 2, 2006 | |
| Mcgriff, William | Colquitt County, Georgia, United States | 1900s - 1911 | 3-10 | Death | April 12, 1915 | |
 | Mcguire, Hunter Allen | 1996 Kingman, Arizona, United States | June - October 2022 | 5 - 6 | N/A (died before capture) | N/A | |
 | Mcknight, Anthony | 1954 United States | September 1985 – January 1986 | 5 | Death | January 24, 1986 | |
 | Mcmonigle, Thomas Henry | May 28, 1914 Covell, Illinois, United States | 1940s - 1945 | 2 - 11 | Death | 1945 | |
 | Mcrae, John Rodney | November 20, 1934 Belleville, Michigan, United States | 1950 - 1987 | 2 - 5+ | Life imprisonment (1951; Paroled (1972)), Life imprisonment without parole (1998) | October 15, 1997 | |
 | Meach, Charles Louman | October 1, 1948[1] Traverse City, Michigan, United States | 1973 - 1982 | 5 | |||
 | Meade, Harold W. | August 24, 1941 Connecticut, United States | 1969 - 1992 | 3 - 8+ | Life imprisonment | December 11, 1970 | |
 | Meadows, Johnny J. E. | 1937 | October 1968 - June 1971 | 1-4+ | 99 years on guilty plea to one count (1972) | December 1971 | |
 | Means, Leon | December 28, 1952 (age 72) Muskegon Heights, Michigan, United States | 1989 - 2014 | 4 | Life imprisonment without parole | 2014 | |
 | Meirhofer, David Gail | June 8, 1949 Manhattan, Montana, United States | 1967 - 1974 | 4 | September 25, 1974 | ||
 | Melanson, Roy Allan | Smooth-Talking Killer | February 13, 1937 Breaux Bridge, Louisiana, United States | 1974 - 1988 | 3-5+ | Life imprisonment | January 1992 (For the final time) |
 | Mendenhall, Bruce D. | • The Rest Stop Killer • The Truck Stop Killer • The Prosti-Shooter | April 14, 1951 (age 73) Crawford, Illinois, United States | June - July 2007 | 6 - 9+ | Life imprisonment | July 12, 2007 |
 | Mersman, Rickie John | United States | 1980s - 1989 | 2 - 5 | 22 years imprisonment | 1989 | |
 | Metheny, Joseph Roy | The Cannibal | March 2, 1955 Baltimore, Maryland, United States | 1976 - 1996 | 5-13 | Life without parole | December 15, 1996 |
 | Meyer, Henry | Germany | 1870s - 1892 | 1 - 6+ | Life imprisonment | 1893 | |
 | Miller, Benjamin Franklin | Bra murders, The Stamford Bra Murders, The Merritt Parkway Murders | 1967 - 1971 | 5 | Found not guilty of certain murders by reason of insanity (1973). Committed to the custody of the Commissioner of Mental Health of the State of Connecticut | ||
 | Miller, Donald | 1941 Los Angeles, California, United States | 1977 - 1981 | 5 | Death | February 27, 1981 | |
 | Miller, Donald Gene | The East Lansing Serial Killer | December 28, 1954 (age 70) Lansing, Michigan, United States | 1977 - 1978 | 4 | August 16, 1978 | |
 | Miller, Joseph Daniel | September 2, 1964 (age 60) Steelton, Pennsylvania, United States | 1986 - 1990 | 5+ | Death; commuted to life imprisonment | August 6, 1992 | |
 | Miller, Joseph Robert | January 15, 1955 (age 69) Illinois, United States | 1976 - 1993 | 6+ | October 1993 (For the final time) | ||
 | Mills, Jonathan | 1973 New Haven, Connecticut, United States | October - December 2000 | 4 | Life imprisonment | December 27, 2000 | |
 | Mitchell, Roy | 1892 | 1922 - 1923 | 6 | January 30, 1923 | ||
 | Moore, Henry Lee | 1874 Boone County, Missouri, United States | 1911–1912 | 2–25 | Life imprisonment (1913, Missouri); later commuted and released (1949) | ||
 | Moore, Manuel | Zebra murders | 1973 - 1974 | 15 dead; 8-10 wounded | Life imprisonment | 1974 | |
 | Morin, Stephen Peter | February 19, 1951 Providence, Rhode Island, United States | November, 1969 - December 11, 1981 | 4-48 | Death | December 12, 1981 | |
 | Morris, Cory Deonn | The Crackhead Killer, Huggy Bear, Teddy Bear | May 10, 1978 (age 46) | 2002 - 2003 | 5+ | Death | April 12, 2003 |
 | Morris, Dontae Rashawn | August 24, 1985 (age 39) Tampa, Florida, United States | May - June 2010 | 5-7 | July 2, 2010 | ||
 | Mors, Frederick | Herr Doktor | October 2, 1889 Vienna, Austria | September 1914 - January 1915 | 8 | Involuntary commitment | January 1915 |
 | Morse, Hugh Bion | January 9, 1930 Kansas City, Missouri, United States | 1951 - 1961 | 4+ | Life imprisonment | October 13, 1961 | |
 | Mosley, Eddie Lee | March 31, 1947 Fort Lauderdale, Florida, United States | 1973 - 1987 | 8-16+ | Involuntary commitment | May 17, 1987 (last time) | |
 | Muehlberg, Gary Randall | Package Killer | February 27, 1949 (age 75) St. Louis, Missouri, United States | March 1990 - February 1993 (known) | 5–6+ | ||
 | Muhammad, John Allen | The Beltway Sniper, The D.C. Sniper | December 31, 1960 Baton Rouge, Louisiana, United States | February 16, 2002 - October 23, 2002 | 10 killed, 3 injured (D.C. metropolitan area), 7 killed, 7 injured elsewhere | Death | October 24, 2002 |
 | Mullin, Herbert William | The Earthquake Killer | April 18, 1947[1] Salinas, California, United States | 1972 - 1973 | 13 | Life imprisonment | February 13, 1973 |
 | MuÑoz, RamÍrez Ricardo Leyva | The Night Stalker, The Walk-In Killer, The Valley Intruder | February 29, 1960 El Paso, Texas, United States | April 10, 1984 - August 24, 1985 | 15+ | Death (x19) | August 31, 1985 |
 | Murderer, Alphabet | The Alphabet murders, The Double Initial Murders | November 16, 1971 - November 26, 1973 | 3 | |||
 | Murderer, The Mad City | The Campus Killer, The Mad City Murderer | 1968 - 1984 | 9 | N/A | ||
 | Murderer, The Flat Tire | Flat-Tire Murderer | 1975 - 1976 | 12-35+ | |||
 | Murders, Tylenol | Tylenol murders, Chicago Tylenol murders | September - October 1982 | 7 | |||
 | Murders, Golden Years | 1990 - 1996 | 13+ | ||||
 | Murders, Great Basin | Great Basin Murders, The Great Basin Murderer | 1983 – 1997 (alleged) | 4+ | |||
 | Murders, The Smiley Face | Smiley face murder theory, Smiley face murders, Smiley face killings, Smiley face gang | 1997 - 2008 | ||||
 | Murders, The Suitland | 1986 - 1987 | 5-9 | ||||
 | Murphy, Donald | 1944 Detroit, Michigan, United States | 1979 - 1980 | 2-6+ | 15-30 years imprisonment | December 15, 1980 | |
 | Murray, David | 1965 Pine Bluff, Arkansas, United States | 1996 - 1998 | 1 - 5 | 2017 | ||
| Murray, Edith | The Cleveland Black Widow | Pennsylvania, United States | 1903 - 1922 | 0 - 5 | Released due to lack of evidence. | |
 | Myers, Karl | March 29, 1948 Picher, Oklahoma, United States | 1978 - 1996 | 2 - 7+ | Death | March 16, 1996 | |
 | Nance, Wayne Nathan | The Missoula Mauler | October 18, 1955 Clinton, Montana, United States | 1974 - 1986 | 4-6+ | Never apprehended | |
 | Nash, Donald | December 9, 1985 | January 1982 - October 1984 | 6 | April 1982 | ||
 | Nash, Stephen A. | 1924 United States | 1955 - 1956 | 11 | Death | ||
 | Naso, Joseph | The Double Initial Killer (possibly) | January 7, 1934 (age 90) Rochester, New York, United States | 1977 - 1994 | 6-10+ | Death (de jure) | April 11, 2011 |
 | Neal, Howard Monteville | September 14, 1953 (age 71) Ellisville, Mississippi, United States | 1980 - 1981 | 3–5 | |||
 | Neidermeyer, Peter | 1881 Chicago, Illinois, United States | 8 | Death (1904) | 1904 | ||
 | Nelson, Earle Leonard | The Gorilla Man, The Gorilla Killer, The Dark Strangler | May 12, 1897 San Francisco, California, United States | February 20, 1926 - June 9, 1927 | 22+ | Death | June 16, 1927 |
 | Nemechek, Francis Donald | June 29, 1950 (age 74) WaKeeney, Kansas, United States | 1974 - 1976 | 5 | |||
 | Nesbitt, Henry | Georgia, United States | 1890s - 1897 | 1 - 7+ | Death (1897) | June 1897 | |
 | Neumar, Betty Lafon | The Black Widow Granny, The Black Widow | November 27, 1931 Ironton, Ohio, United States | 1970 - 2007 | 1 - 5 | N/A (died before trial) | May 2008 |
 | Newman, Allan Patterson | February 22, 1951 Wheaton, Maryland, United States | 1991 - 1992 | 4 | Life imprisonment (x4) | October 9, 1992 | |
 | Ng, Charles Chi-tat | December 24, 1960 (age 64) British Hong Kong | 1983 - 1985 | 11 convictions, 25 total suspected | Death by lethal injection (de jure) | July 6, 1985 | |
 | Nicolaus, Robert Henry | 1933 United States | 4 | Death; commuted to life imprisonment (1964), Death (1987) | July 20, 1985 | ||
 | Niport, Milton | 1933 Coral Gables, Florida, United States | 1960s - 1970 | 2 - 6+ | Life imprisonment | 1970 | |
 | Nissensohn, Joseph Michael | December 31, 1950 (age 74) North Carolina, United States | 1981 - 1989 | 4+ | Death (California), 25 years (Washington) | ||
 | Nixon, Robert | The Brick Moron | July 19, 1919 Tallulah, Louisiana, United States | 1937 - 1938 | 3-5 | Death | May 28, 1938 |
 | No, Dr | Ohio Prostitute Killer, I-71 Killer | 1981 - 2004 | 9+ | |||
 | Noe, Marie | August 23, 1928 Philadelphia, Pennsylvania, United States | 8 | 20 years probation | 1998 | ||
 | Normore, Mario James Jerrell | April 23, 1991 (age 33) Oklahoma City, Oklahoma, United States | July 10 - October 3, 2017 | 4 | October 27, 2017 | ||
 | Norris, Roy Lewis | The Tool Box Killers | February 5, 1948 Greeley, Colorado, United States | June 24 - October 31, 1979 | 5 | Life imprisonment | November 20, 1979 |
 | Northcott, Gordon Stewart | November 9, 1906 Bladworth, Saskatchewan, Canada | 1926 - 1928 | 3-20 confirmed (confessed to 9; implicated in 1) | Death | September 19, 1928 | |
 | Ocampo, Itzcoatl Misael | March 20, 1988 Mexico City, Mexico | 2011 - 2012 | 6 (not confirmed, died before trial) | January 13, 2012 | ||
 | Odell, Diane | 1953 (age 71–72) Orwell Township, Pennsylvania, United States | 1982 - 1985 | 3-4 | Life imprisonment | May 17, 2003 | |
 | Oneall, Darren Dee | February 26, 1960 (age 64) Albuquerque, New Mexico, United States | January 27 - September 22, 1987 | 1-6 | 27 years, 9 months imprisonment (January 1989), 135 years imprisonment | September 22, 1987 | |
 | Ortiz, Juan David | May 22, 1983 (age 41) | September 3 – 15, 2018 | 4 | Life imprisonment without parole | ||
 | Osellanie, Frank | 1946 Scranton, Pennsylvania, United States | 1978 - 1989 | 1 - 4 | Life imprisonment | 1989 | |
 | Pace, Lyndon Fitzgerald | July 1964 Atlanta, Georgia, United States | 1988 - 1989 | 4-5 | Death | October 2, 1992 | |
 | Panzram, Charles | June 28, 1891 East Grand Forks, Minnesota, United States | 1899 - 1929 | 5 confirmed, 21 confessed, 100+ suspected | Death | ||
 | Paradiso, Leonard | The Quahog | 1943 Revere, Massachusetts, United States | 1974 - 1984 | 1 - 6 | Life imprisonment | 1984 |
 | Pardo, Manuel | The Death Row Romeo | September 24, 1956New York, United States | January - April 1986 | 9 | Death | May 7, 1986 |
 | Parker, Gerald | The Bedroom Basher, The Bludgeon Killer | 1955 (age 68–69) Phoenix, Arizona, United States | 1978 - 1979 | 6 | Death | January 1996 |
 | Patton, Carl Millard | The Flint River Killer | 1949 (age 75–76) Georgia, United States | 1973 - 1977 | 5 | February 23, 2003 | |
 | Peery, Wesley Harms | August 19, 1924 Lincoln, Nebraska, United States | 1943 - 1975 | 1 - 8 | Death | 1975 | |
 | Peiry, Michel | The Sadist of Romont | February 28, 1959 (age 65) Romont, Switzerland | 1981 - 1987 | 5-11 | Life imprisonment | |
 | Penn, Thomas Lee | 1948 Richmond, Virginia, United States | April - May 1966 | 6 | Life imprisonment | 1966 | |
 | Pennell, Steven Brian | The Route 40 Killer, The Corridor Killer, The Route 13 Killer | November 22, 1957 Glasgow, Delaware, United States | 1987 - 1988 | 5 (2 convictions) | Death | November 29, 1988 |
 | Penton, David Elliott | February 9, 1958 (age 66) | 1984 - 1988 | 5-9+ | Life imprisonment | ||
 | Peoples, Louis James | 1997 | 4 | Death (August 4, 2000) | November 12, 1997 | ||
 | Perez, Paul Allen | 1963 United States | 1992 - 2001 | 5 | 2020 | ||
 | Perkins, Reginald | April 29, 1955 Woodruff County, Arkansas, United States | 1980 - 2000 | 3-6 | Life imprisonment with parole eligibility (November 12, 1981), Death (March 22, 2002) | ||
 | Peterson, Christopher Dwayne | The Shotgun Killer | January 20, 1969 (age 55) Gary, Indiana, United States | October 30, 1990 - December 18, 1990 | 4-7 | Death; re-sentenced to total of 120 years imprisonment | |
 | Phantom, The Freeway | Freeway Phantom | April 25, 1971 - September 5, 1972 | 6 | |||
 | Phantom Killer, The Texarkana | Texarkana Moonlight Murders, Phantom Killer, Phantom Slayer | 5 killed, 3 wounded, 1 rumoured killing | Never apprehended | |||
 | Pierce, William Joseph | October 11, 1931Midville, Georgia, United States | 1970 - 1971 | 9+ | Life imprisonment | March 8, 1971 | |
 | Piper, Donald Arthur | May 11, 1961 (age 63) West Des Moines, Iowa, United States | 1993 - 1997 | 2 - 6 | Life imprisonment | January 20, 2000 | |
 | Pizzuto, Gerald Ross | January 11, 1956 (age 68) Orland, California, United States | March - July 1985 | 4 | Death | July 29, 1985 | |
 | Player, Michael | The Skid Row Slayer | September 6, 1960[1] Los Angeles, California, United States | September - October 1986 | 10 | ||
 | Poisonings, St. Croix | The Obia Man | 1984 - 1988 | 5 | N/A | ||
 | Pomeroy, Jesse Harding | November 29, 1859 Charlestown, Massachusetts, United States | 1871 - 1874 | 2 confirmed, suspect to be 9 or more than 10 | Death, commuted to life to be served in solitary confinement in 1876, commuted to life imprisonment in 1917 | April 24, 1874 | |
| Porter, Lauren | The Goose Pond Murderer | 1909 Oglethorpe, Georgia, United States | 1939 - 1947 | 4 | Death (1947) | January 26, 1947 |
 | Porter, Ronald Elliot | 1947 United States | 1985 - 1988 | 1 - 15+ | Life imprisonment | 1988 | |
 | Pough, James Edward | February 16, 1948 Jacksonville, Florida, United States | 1971; June 17–18, 1990 | 13 (including himself and his friend in 1971) | |||
 | Powell, Jerrid Joseph | Los Angeles homeless shootings | February 28, 1990 (age 34) [2] | November 26-29, 2023 | 4+ | ||
 | Powers, Harry F. | November 17, 1893 Beerta, Groningen, Netherlands | 5 | Death | |||
 | Poyner, Syvasky Lafayette | April 7, 1956 Newport News, Virginia, United States | January 23 - February 2, 1984 | 5 | Death | February 4, 1984 | |
 | Presley, Aeman Lovel | 1980 Chicago, Illinois, United States | September - December 2014 | 4 | Life imprisonment (x4) | December 11, 2014 | |
 | Pressdee, Heather Irene | August 28, 1982 (age 42) Natrona Heights, Pennsylvania, United States | 2020 - 2023 | 3 - 17+ | May 25, 2023 | ||
 | Price, Craig Chandler | October 11, 1973 (age 51) Warwick, Rhode Island, United States | July 27, 1987 - September 1, 1989 | 4 | 1989 | ||
 | Price, Larme | The September 11 Serial Killer, Sept. 11 Killer, The Thrill Killer, Saturday Killer, .40-caliber Killer | June 27, 1972 (age 52) Brooklyn, New York, United States | February 8 - March 20, 2003 | 4 | Life imprisonment (February 2004) | March 29, 2003 |
 | Priest, Martin Dean | 1957 (age 67–68) Nevada, Missouri, United States | 1980 - 1985 | 2-5 | Life imprisonment (x2) | March 30, 1985 | |
 | Prieto, Alfredo Rolando | November 18, 1965 San Martín, El Salvador | 1988 - 1990 | 9 (3 convictions) | Death | September 6, 1990 | |
 | Prince, Cleophus | The Clairemont Killer | July 24, 1967 (age 57) Birmingham, Alabama, United States | January 12, 1990 – September 13, 1990 | 6 | Death | March 3, 1991 |
 | Prostitute Killings, South Memphis | Memphis serial killer | January 27 - February 26, 2011 (possibly September 2015; wanted since January 27, 2011) | 3-4 | |||
 | Pruett, Marion Albert | Mad Dog Killer | October 4, 1949 Gastonia, North Carolina, United States | March 2, 1981 - October 12, 1981 | 5+ | Death (Arkansas), Life imprisonment (x4) (New Mexico, Mississippi, Colorado) | October 17, 1981 |
 | Puente, Dorothea Helen | January 9, 1929 Redlands, California, United States | 1982 - 1988 | 9-15 | Life imprisonment without parole | November 11, 1988 | |
 | Rader, Dennis Lynn | B.T.K., BTK Killer, BTK Strangler | March 9, 1945 (age 79) Pittsburg, Kansas, United States | January 15, 1974 - January 19, 1991 | 10 | Life imprisonment without the possibility of parole for 175 years (10 consecutive life sentences) | February 25, 2005 |
 | Rahman, Yusef Abdullah | The Riverhead Sniper | January 17, 1969 (age 55) Brooklyn, New York City, New York, United States | 1987 - 1988 | 2 - 5 | Life imprisonment | January 28, 1989 |
 | Ralston, Larry M. | July 5, 1949 (age 75) Norwood, Ohio, United States | 1975 - 1977 | 4-5+ | Death (May 4, 1978, Elaina Bear; commuted to Life imprisonment on July 26, 1978), Life imprisonment (July 6, 1978, Diane McCrobie), Life imprisonment (August 2, 1978, Lisa Harmon), Life imprisonment ( | November 15, 1977 | |
 | Rand, Andre | The Pied Piper of State Island, Cropsey | March 11, 1944 (age 80) Manhattan, New York City, New York, United States | 1972 - 1987 | 2 - 8 | Life imprisonment | 1988 |
 | Ranes, Danny Arthur | October 20, 1943 Kalamazoo, Michigan, United States | March - August 1972 | 4 | Life imprisonment without parole (x4) | September 5, 1972 | |
 | Ranes, Larry Lee | Monk Steppenwolf | March 22, 1945 Kalamazoo, Michigan, United States | April - May 1964 | 1-5 | Life imprisonment without parole | June 5, 1964 |
 | Rardon, Gary Duane | September 4, 1943 (age 81) Wayne County, North Carolina, United States | 1962 - 1974 | 4 | January 16, 1975 | ||
 | Rasco, Hezekiah | October 8, 1880 Sidney, Iowa, United States | 1896 - 1910 | 5 | 10 years (1896), Death (1910) | November 1910 | |
 | Rasmussen, Terry Peder | The Chameleon Killer | December 23, 1943 Denver, Colorado, United States | c. 1978 - 2002 | 6+ | 15 years to life | 2002 |
 | Ray, Clifton Lee | June 27, 1958 (age 66) United States | 1987 - 1994 | 3-6+ | Life imprisonment (2x) | June 1, 1994 | |
 | Ray, David Parker | The Toy-Box Killer | November 6, 1939 Belen, New Mexico, United States | 1950 - 1999 | Unknown, 0 murder convictions, 1 murder-by-proxy conviction, more than 60 murders suspected, 3 tortured and survived (known) | 224 years imprisonment | March 22, 1999 |
 | Ream, Arthur Nelson | May 9, 1949 (age 75) Michigan, United States | 1972 - 1990 | 1 - 6+ | Life imprisonment | 1986 | |
 | Rebert, Steven Patrick | 1965 Oakfield, New York, United States | 2005 - 2010 | 2 - 4 | Life imprisonment | 2010 | |
 | Red Dog, James Allen | February 1, 1954 Poplar, Montana, United States | 1973 - 1991 | 5 + 1 as an accomplice | 15 years imprisonment (Federal), Life imprisonment (California), Death (Delaware) | February 10, 1991 | |
 | Redmond, William Henry | January 22, 1922 Conneaut, Ohio, United States | 1949 - 1987 | 1 - 7+ | N/A (died before conclusion of trial) | 1988 | |
 | Reece, William Lewis | July 1, 1959 (age 65) [1] | 1997 | 4+ | 1997 | ||
 | Reed, Perez Deshay | November 10, 1995 (age 29) | September - November 2021 | 4-7+ | November 5, 2021 | ||
 | Reed, Todd Alan | The Forest Park Killer | May 22, 1967 (age 57) Portland, Oregon, United States | April - June 1999 (possibly 1987) | 3-5 | Life imprisonment (x3) | July 18, 1999 |
 | Rees, Melvin David | The Sex Beast | 1928 Maryland, United States | June 26, 1957 - January 11, 1959 | 5-9+ | Life imprisonment | June 24, 1960 |
 | Reeves, Jack Wayne | June 20, 1940 (age 84) Wichita Falls, Texas, United States | 1967 - 1994 | 4 | 99 years imprisonment | ||
 | Reid, Billy Edwin | 1959 | February - October 1989 | 2-21 | 2006 | ||
 | Reid, Paul Dennis | The Fast Food Killer | November 12, 1957 Richland Hills, Texas, United States | February 16, 1997 - April 23, 1997 | 7 killed; 2 survivor | Death | June 25, 1997 |
 | Reldan, Robert | The Susan Strangler | June 2, 1940 (age 84) Brooklyn, New York, United States | 1974 - 1975 | 2 - 6 | Life imprisonment | October 31, 1975 |
 | Rembert, Robert Gene | March 15, 1970 (age 54) Cleveland, Ohio, United States | 1997 - 2015 | 5+ | 30 years to Life imprisonment | September 21, 2015 | |
| Renfroe, William A. | 1897–1898 | 1930 - 1931 | 4 | |||
 | Renteria, Pete Anthony | 1994 California, United States | January - September 2023 | 4 | October 4, 2023 | ||
 | ResÉndiz, Ángel Maturino | The Railroad Killer, The Railway Killer, The Railcar Killer | August 1, 1959 Izúcar de Matamoros, Puebla, Mexico | 1986 - 1999 | 16-23 | Death | July 12, 1999 |
 | Respus, Asbury | c. 1878 North Carolina, United States | 1910 - 1931 | 8+ | 15 years imprisonment (Ed Wynne murder), Death (Vera Leonard murder) | 1931 | |
 | Rhoades, Paul Ezra | January 18, 1957 Idaho Falls, Idaho, United States | 1984 - 1987 | 3 - 7+ | March 26, 1987 | ||
 | Rhoades, Robert Benjamin | The Truck Stop Killer | November 22, 1945 (age 79) Council Bluffs, Iowa, United States | 1975 - 1990 | 4-50+ | Life without parole | April 1, 1990 |
 | Rice, Stanley Everett | August 7, 1942 Concord, Massachusetts, United States | 1963 - 1968 | 3 - 5+ | Life imprisonment | May 25, 1968 | |
 | Rich, Darrell Keith | The Hilltop Rapist, Young Elk | February 14, 1955 Northern California, United States | June - August 1978 | 4 | Death | |
 | Richard, Antonie | Creole | 1844 St. Martinville, Louisiana, United States | 1888 - 1897 | 7 | Death | June 1897 |
 | Richards, Stephen Dee | The Nebraska Fiend, Kearney County Murderer, The Ohio Monster | March 18, 1856 Wheeling, West Virginia, United States | 1876 - 1878 | 9 | Death | December 20, 1878 |
| Richardson, Billy Ray | December 4, 1946 | 1980 - 1995 | 4 | N/A (died before trial) | July 14, 2022 | |
 | Richardson, Edwin Dean | August 2, 1936 Oklahoma, United States | 1968 - 1977 | 3 – 4+ | Life imprisonment | ||
 | Richmond, Earl | November 6, 1961 | April 5 - November 2, 1991 | 4 | April 3, 1992 | ||
 | Ridgway, Gary Leon | The Green River Killer, The Riverman | February 18, 1949 (age 75) Salt Lake City, Utah, United States | 1982 - 1998 confirmed (but could be as recent as 2001) | 49 (convicted), 71 (confessed) | Life imprisonment without parole | November 30, 2001 |
 | Rifkin, Joel David | Joel the Ripper | January 20, 1959 (age 65) New York City, New York, United States | 1989 - 1993 | 9-17 | 203 years to life in prison | June 28, 1993 |
 | Rissell, Montie Ralph | November 28, 1958 (age 66) Wellington, Kansas, United States | August 4, 1976 - May 1977 | 5 murder victims, 12 rape victims | Life imprisonment (five consecutive life sentences) | May 18, 1977 | |
 | Ritchie, James Dale | The Anchorage Serial Killer | November 4, 1976 Anchorage, Alaska, United States | July 2016 - August 2016 | 5+ | ||
 | Robbins, Gary Allen | 1935 Beaver County, Pennsylvania, United States | 1981 - 1988 | 4+ | N/A (died before trial) | N/A | |
 | Robbins, Malcolm Joseph | July 7, 1960 Rockland, Maine, United States | 1979 - 1980 | 4+ | November 26, 1980 | ||
 | Roberts, David James | January, 1944 (age 81–82) Perth Amboy, New Jersey, United States | January - November 1974 | 4 | Death; commuted to life imprisonment | For the final time on February 7, 1988 | |
 | Robinson, Alfred Lee | November 18, 1962 (age 62) Florida, United States | 1986 - 1991 | 5 - 6 | Life imprisonment | 1991 | |
 | Robinson, Amos Earl | August 5, 1963 (age 61) Marianna, Florida, United States | 1983 - 2004 | 6 | October 27, 1983 | ||
 | Robinson, Anthony Eugene | The Shopping Cart Killer | September 3, 1986 (age 38) | 2021 (possibly 2018) | 2 (4 suspected) | November 23, 2021 | |
 | Robinson, John Edward | The Slave Master, Internet Slavemaster | December 27, 1943 (age 81) Cicero, Illinois, United States | 1984 - 1999 | 8+ | June 2, 2000 | |
 | Robinson, Sarah Jane | The Boston Borgia, The Massachusetts Borgia | 1838 Newtownhamilton, Ireland | 1881 - 1886 | 8-11 | Death; commuted to life imprisonment | August 12, 1886 |
 | Roche, John Francis | September 6, 1927 Port Chester, New York, United States | 1953 - 1954 (confirmed) | 4-6 | Death | June 5, 1954 | |
 | Rodriguez, Antonio | The Kensington Strangler | October 28, 1988 (age 36) Philadelphia, Pennsylvania, United States | November 3 - December 15, 2010 | 3 | Life imprisonment (x3) | January 17, 2011 |
 | Rogers, Dayton Leroy | The Molalla Forest Killer | September 30, 1953 (age 71) Moscow, Idaho, United States | 1983 - 1987 | 7-8+ | Death | 1987 |
 | Rogers, Glen Edward | The Cross Country Killer, The Casanova Killer | July 15, 1962 (age 62) Hamilton, Ohio, United States | 1993/1995 - November 9, 1995 | 2 convictions, 3+ more suspected | Death | November 13, 1995 |
 | Rogers, Ramon Jay | March 13, 1960 (age 64) Emmett, Idaho, United States | 1977 - 1996 | 3 - 4 | Death | 1996 | |
 | Rogers, Richard Westall | The Last Call Killer | June 16, 1950 (age 74) Plymouth, Massachusetts, United States | 1992 - 1993 | 3-7+ | Life imprisonment | May 30, 2001 |
 | Rolling, Daniel Harold | The Gainesville Ripper | May 26, 1954 Shreveport, Louisiana, United States | November 4, 1989 - August 27, 1990 | 8 | Death sentence | September 7, 1990 |
 | Ronning, Michael | 1957 Battle Creek, Michigan, United States | 1982 - 1986 | 1 - 7 | Life imprisonment | 1986 | |
 | Rosenfeld, Brian Kevin | 1958 (age 65–66) | 1985 - 1990 | 3 - 23 | Three concurrent life terms in prison, with no possibility of parole | 1990 | |
 | Ross, Michael Bruce | The Roadside Strangler, The Egg Man | July 26, 1959 Putnam, Connecticut, United States | May 12, 1981 - June 13, 1984 | 8+ | Death | June 29, 1984 |
 | Row Stabber , The Skid | The Skid Row Stabber | 1978 - 1979 | 12 | |||
 | Rozier, Robert Earnest | July 28, 1955 (age 69) Anchorage, Alaska Territory | 1981 - 1986 | 4-7 | 10 years imprisonment; Imprisoned for 25–life | October 31, 1986 | |
 | Runge, Paul Frederick | January 28, 1970 (age 54) Oak Forest, Illinois, United States | 1995 - 1997 | 7-8+ | Death; commuted to life imprisonment | ||
 | Russell, George Waterfield | The Charmer, The East Side Killer, The Bellevue Killer | April, 1958 (age 66–67) Florida, United States | June - August 1990 | 3 | Life imprisonment (x2) | September 12, 1990 |
 | Saenz, Kimberly Clark | November 3, 1973 (age 51) Fall River, Massachusetts, United States | 5 (+5 attempted) | Life plus 60 years | 2008 | ||
 | Saldivar, Efren | September 30, 1969 (age 55) Brownsville, Texas, United States | 1988 - 1998 | 6-200+ | Six consecutive life sentences without the possibility of parole | March 13, 1998 | |
 | Samartaney, Malik | June 7, 1953 (age 71) Maryland, United States | 1991 - 2019 Also suspected of murdering his wife in 1976 | 3-6 | 15 years imprisonment (1975 assault), 20 years imprisonment (1991 murders), 41 years imprisonment (2019 murder) | ||
 | Sanchez, Altemio | The Bike Path Killer, The Bike Path Rapist | January 19, 1958 (age 66) San Sebastián, Puerto Rico | 1975 - September 29, 2006 | 3+ (Murder), 9–15+ (Rape) | 75 years to life | January 15, 2007 |
 | Sapp, John | 1949 Concord, California, United States | 1975 - 1986 | 4 - 9+ | Death | 1986 | |
 | Saucedo, Aaron Juan | Maryvale serial shooter, The Serial Street Shooter | April 6, 1994 (age 30) Phoenix, Arizona, United States | August 12, 2015 - July 11, 2016 | 9 killed, 3 wounded | His trial is scheduled for February 2024 | |
 | Schaefer, Gerard John | The Killer Cop, The Hangman, The Butcher of Blind Creek | March 26, 1946 Wisconsin, United States | September 27, 1972 (confirmed)October 2, 1966 - January 11, 1973 (suspected) | 2 - 38+ | Life imprisonment | April 7, 1973 |
 | Scheanette, Dale Devon | The Bathtub Killer | May 7, 1973 Monroe, Louisiana, United States | 1996 - 1999 | 2 | Death | 1999 |
 | Schmid, Charles Howard | The Pied Piper of Tucson | July 8, 1942 Tucson, Arizona, United States | 1964 - 1965 | 3-4 | Death; Commuted to 50 years imprisonment | November 10, 1965 |
 | Scott, Fredrick Demond | Indian Creek Trail serial killer, Indian Creek serial killer | November 18, 1994 (age 30) | 2016 - 2017 | 6 | August 2017 | |
 | Scott, Jason Thomas | The Mother-Daughter Killer | February 21, 1983 (age 41) Prince Georges County, Maryland, United States | 2008 - 2009 | 5 | July 1, 2009 | |
 | See, Edward Allen | 1947 North Carolina, United States | 1970s - 1979 | 1 - 5 | Life imprisonment | 1980 | |
 | Segundo, Meza Juan Ramon | January 25, 1963 (age 61) Los Angeles, California, United States | August 3, 1986 - June 17, 1995 | 4+ | Death | April 19, 2005 | |
 | Selenski, Hugo | 1974 Sioux City, Iowa, United States | 2002 - 2003 | 4 - 5 | Life imprisonment | 2003 | |
 | Sells, Tommy Lynn | • The Cross Country Killer • The Coast to Coast Killer | June 28, 1964 Oakland, California, United States | 1980 - December 31, 1999 | 1 conviction; 22+ suspected | Death | January 2, 2000 |
 | Serial Killer, Albuquerque | Albuquerque serial killer | November 7, 2021 - August 5, 2022 | 11 | |||
 | Serial Killer, Grand Rapids | 1993 - 1997 | 16+ | N/A | |||
 | Serial Killer, Lawton | 1999 - 2003 | 5 | N/A | |||
 | Serial Killer, Edgecombe County | Edgecombe County Serial Killer, The Seven Bridges Killer | 2005 - 2009 | 10-11 | Life imprisonment (Pittman) | ||
 | Serial Killer, Pittsburg | 1998 - 1999 | 5 | ||||
 | Serial Murders, San Diego | 1985 - 1990 | 43+ | ||||
 | Serial Murders, Nassau County | Nassau County serial murders | 1984 - 1989 | 5 | |||
 | Serial Murders, South Florida | February 25, 1997 - August 2001 | 10+ | ||||
 | Sharp, Michael Eugene | April 24, 1954 Eastland, Texas, United States | February - June 1982 | 3 - 5+ | Death | June 16, 1982 | |
 | Shaw, Sebastian Alexander | November 28, 1967 Phước Tuy Province, South Vietnam | 1991 - 1992 (possibly 1994) | 3-13 | Life imprisonment (×3) | February 20, 1998 | |
 | Shawcross, Arthur John | The Genesee River Killer, The Monster of the Rivers, The Rochester Strangler | June 6, 1945 Kittery, Maine, United States | May 7, 1972 - December 28, 1989 | 13-16 | Life in prison without parole (or a term amounting to 250 years) | January 5, 1990 |
 | Sherman, Lydia | The Derby Poisoner | December 24, 1824 Burlington, New Jersey, United States | 1863 - 1877 | 12 (including 3 husbands and 8 children, 6 of whom were her own) | Life imprisonment | June 7, 1872 |
 | Shermantine, Wesley Howard | The Speed Freak Killer | February 24, 1966 (age 58) Linden, California, United States | 1984 - 1999 | 4-19 | Death | March 17, 1999 |
 | Shobek, Michaiah | The Angels of Lucifer Killer | 1954 Milwaukee, Wisconsin, United States | 1973 - 1974 | 3+ | Death | January 1974 |
 | Shore, Anthony Allen | The Tourniquet Killer, The Strangler | June 25, 1962 Rapid City, South Dakota, United States | September 26, 1986 - July 6, 1995 | 4+ | Death | October 24, 2003 |
 | Shrader, Marcus Bryan | 1941 Camden, New Jersey, United States | January - August 1974 | 4 | Death; commuted to life imprisonment | 1974 | |
 | Shulman, Robert Yale | March 28, 1954 Hicksville, New York, United States | 1991 - 1996 | 5 | Death, commuted to Life imprisonment | April 6, 1996 | |
| Sides, Eugene Mervin | 1957 United States | 1980s - 1989 | 2 - 17 | Life imprisonment | 1990 | |
 | Siebert, Daniel Lee | The Southside Slayer | June 17, 1954 Mattoon, Illinois, United States | 1979 - 1986 | 10-13 | Death | 1986 |
 | Siemsen, John Hoolulu | The San Francisco Gas Pipe Murderer | November, 1885 Hilo, Hawaii County, Kingdom of Hawaii | August - October 1906 | 3 | Death (1906) | November 3, 1906 |
 | Silva, David | August 18, 1953 (age 71) San Francisco, California, United States | 1992 - 1999 | 4 - 5+ | Life imprisonment | 1999 | |
 | Silva, Mauricio Rodriguez | The Monster | October 25, 1959 (age 65) Los Angeles, California, United States | 1978 - 1984 | 4 | 5 1/5 years (1978), Death (1985) | May 26, 1984 |
 | Silveria, Robert Joseph | The Boxcar Killer, Sidetrack | March 3, 1959 (age 65) Redwood City, California, United States | 1981 - 1996 | 9-14+ | Double life sentences | March 2, 1996 |
 | Simon, J. C. X. | Zebra murders | 1973 - 1974 | 15 dead; 8-10 wounded | Life imprisonment | 1974 | |
 | Simpson, Adrienne | Modern-day version of Bonnie and Clyde | May 2021 | 5 (suspected) | Life imprisonment | ||
 | Sims, Ray Dell | 1935 (age 88–89) Oklahoma, United States | 1974 - 1977 | 5+ | Life imprisonment (x2) | 1977 | |
 | Sinclair, Charles Thurman | The Coin Shop Killer | November 24, 1946 Jal, New Mexico, United States | 1980 - 1990 | 13; total unconfirmed | August 13, 1990 | |
 | Six, Andrew Wessel | May 14, 1965 Pershing, Iowa, United States | 1984 - 1987 | 4 | Death | April 11, 1997 | |
 | Slasher , The Frankford | August 19, 1985 - September 6, 1990 | 8-9 | Life (Leonard Christopher) | May 5, 1990 (Leonard Christopher) | ||
 | Slayer, The Storyville | The Storyville Slayer, New Orleans Serial Killer, Clay the Serial Killer | 1991 - 1996 | 24+ | |||
 | Smith, Gayno Gilbert | January 23, 1938 Keokuk County, Iowa, United States | October 1961 - May 27, 1962 | 6 | Life imprisonment with hard labor | June 1, 1962 | |
 | Smith, Harold Glenn | November 26, 1967 (age 57) Houston, Texas, United States | 1980s - 1985 | 1 - 4 | Life imprisonment | January 1986 | |
 | Smith, Lemuel Warren | July 23, 1941 (age 83) Amsterdam, New York, United States | January 21, 1958 - May 15, 1981 | 6 | Death, commuted to Life imprisonment | August 19, 1977 | |
 | Smith, Mark Alan | The States Forgotten Serial Killer, Remington Steele | June 27, 1949 (age 75) Chicago, Illinois, United States | 1969 - 1970 | 4-12+ | Life imprisonment | |
 | Smith, Mary Eleanor | Shoebox Annie | 1866 New York, United States | 1920s - 1928 | 1 - 4 | Life imprisonment | September 13, 1928 |
 | Smith, William Scott | April 29, 1959 (age 65) Portland, Oregon, United States | 1981 - 1984 | 4+ | Life imprisonment (x4) | April 26, 1984 | |
 | Smrekar, Russell | 1955 Joliet, Illinois, United States | 1975 - 1977 | 2 - 4 | 300 years imprisonment | 1977 | |
 | Snell, Angles | February, 1844 Tiverton, Rhode Island, United States | 1902 - 1903 | 2 - 5 | Death; commuted to life imprisonment | 1903 | |
 | Snow, Francis Marion | The Butcher of Stephenville | June 6, 1881 Texas, United States | 1912 - 1925 | 3 - 7+ | Death | November 12, 1925 |
 | Snyder, Leroy | February 13, 1931 Camden, New Jersey, United States | February - September 1969 | 7 | Life imprisonment (x3) | September 11, 1969 | |
 | Solomon, Morris | The Sacramento Slayer | March 15, 1944 Albany, Georgia, United States | June 1986 - April 1987 | 7 (6 convictions) | Death | April 22, 1987 |
 | Soper, Edward Bates | February 7, 1855 Kearney, Missouri, United States | 1880 - 1897 | 5 | Death | June 10, 1897 | |
 | Sorenson, Della Sidel | February 16, 1897 Farwell, Nebraska, United States | 1918 - 1923 | 7 - 8 | Involuntary commitment | 1923 | |
 | Soto, Ernesto | Charlie Chop-off | March 9, 1972 - August 17, 1973 | 4 | Never sentenced | May 15, 1974 | |
 | Southard, Lyda Catherine | Lyda Ambrose, Lyda Trueblood | 1891 | 1917 - 1920 | 5 | Life imprisonment | December 1920 |
 | Sowell, Anthony Edward | The Cleveland Strangler | August 19, 1959 Ohio, United States | May, 2007 - September, 2009 | 11-14 | Death sentence for murder | October 31, 2009 |
 | Spahalski, Robert Bruce | 1955 (age 69–70) Rochester, New York, United States | 1990 - 2005 | 4 | 100 years imprisonment | November 2005 | |
 | Spangler, Robert | January 10, 1933 | 1978 - 1993 | 4 | Life imprisonment without parole | 2000 | |
 | Speck, Richard Benjamin | December 6, 1941 Kirkwood, Illinois, United States | [information missing ] | 8 | Death, commuted 400 to 1200 years | July 17, 1966 | |
 | Spencer, Timothy Wilson | The Southside Strangler, The Southside Slayer, The Southside Rapist, The Masked Rapist | March 17, 1962 | 1984; 1987 - 1988 | 5 | Death | January 20, 1988 |
 | Spillman, Jack Owen | The Werewolf Butcher | August 30, 1969 (age 55) Spokane, Washington, United States | 1994 - 1995 | 3 | Life imprisonment | 1996 |
 | Spreitzer, Edward | The Ripper Crew, The Chicago Rippers | January 5, 1961 (age 63) Chicago, Illinois, United States | May 23, 1981 - October 8, 1982 | 18 | Death, commuted to life imprisonment | November 5, 1982 |
 | Srery, Gary Allen | July 26, 1942 Oak Park, Illinois, United States | 1976 - 1977 | 4+ | Life imprisonment | 2008 | |
 | St. Clair, Michael Dale | January 15, 1957 (age 67) United States | 1990 - 1991 | 3 - 6 | Death; commuted to life imprisonment | 1991 | |
 | Staffleback, Nancy | August 16, 1832 Allegany County, New York, United States | 1896 - 1900s | unknown | 25 years imprisonment | 1900s | |
 | Stafford, Roger Dale | November 4, 1951 Sheffield, Alabama, United States | 1974 - 1978 | 9 confirmed, 34 suspected | Death | ||
 | Stanley, Gerald | 1945 (age 78–79) United States | 1975 - 1980 | 2-3 | 10 years (October 1975), Death (1984) | August 15, 1980 | |
 | Stano, Gerald Eugene | The Daytona Beach Killer | September 12, 1951 Schenectady, New York, United States | 1969 - February 1980 | 22 confirmed, 41 claimed | Death | April 1, 1980 |
 | Stayner, Cary Anthony | The Yosemite Park Killer, The Yosemite Killer | August 13, 1961 (age 63) Merced, California, United States | February - July 1999 | 4 | Death | July 24, 1999 |
 | Steelman, Willie Luther | March 21, 1945 San Joaquin County, California, United States | 1973 | 17 | November 8, 1973 | ||
 | Steeples, Thomas | 1945 Nashville, Tennessee, United States | 1992 - 1994 | 3 - 4 | N/A (died before trial) | 1994 | |
 | Steeves, Richard | February 1, 1942 (age 82) Waterville, Maine, United States | 1965 - 1985 | 6 | Life imprisonment | May 1985 (final time) | |
 | Stephani, Paul Michael | The Weepy-Voiced Killer | September 8, 1944 Austin, Minnesota, United States | 1980 - 1982 | 3 killed, 2 survived | 58 years in prison | August 21, 1982 |
 | Stevens, Charles Arnett | The I-580 killer | March 19, 1969 (age 55) Oakland, California, United States | April – July 1989 | 4 | Death | July 27, 1989 |
 | Stickles, Martin | The Kelso Killer | February 7, 1870 Adams County, Iowa, United States | 1899 - 1900 | 3 | Death | 1900 |
 | Stokes, Winford | March 21, 1951 St. Louis, Missouri, United States | 1969 - 1978 | 3 (one as accomplice) | Death | December 11, 1978 | |
| Stone, Hattie Blackburn | 1879 Maryland, United States | 1925 - 1929 | 3 - 4 | 18 years imprisonment | 1929 | |
 | Strangler, Miami | 1964 - 1970 | 9-11 | ||||
 | Strangler, Dayton | Dayton Strangler, Strangler of Death Lane, Man Gorilla of Death Lane, Jack the Strangler | 1900 - 1909 | 6 | |||
 | Strangler, Eastbound | Eastbound Strangler, Atlantic City Serial Killer | October - November 2006 | 4 | |||
 | Strangler, Honolulu | The Honolulu Strangler, The Honolulu Rapist | May 1985 - April 1986 | 5 | |||
 | Street Ripper , The Rainey | The Rainey Street Ripper, Lady Bird Lake Serial Killer | 2022-present (possibly 2015) | 0-10 (possibly 12) | |||
 | Stutzman, Eli | The Amish Serial Killer | 1950 Apple Creek, Ohio, United States | 1977 - 1985 | 1 - 5 | 40 years imprisonment | 1985 |
 | Suff, William Lester | The Riverside Prostitute Killer, The Lake Elsinore Killer | August 20, 1950 (age 74) Torrance, California, United Statews | 1974 - 1992 | 13 convicted, 1 survivor,, 14+ alleged | Death (October 26, 1995) | January 9, 1992 |
 | Sullivan, Charles | December 28, 1945 (age 79) Missoula, Montana, United States | 1978 - 1985 | 2 - 5+ | 15 years imprisonment | August 28, 2019 | |
 | Sully, Anthony John | January 2, 1944 San Francisco, California, United States | February - August 1983 | 6 | Death | August 25, 1983 | |
 | Summers, Margaret | The Fly Paper Murderess | 1886 United States | 1928 - 1931 | 1 - 6 | 17 years imprisonment | 1931 |
 | Sumner, Jesse | January 9, 1937 McLean, Illinois, United States | 1963 - 1973 | 4 | 35-to-75 years; commuted to 10-to-15 years (Williams murder), 50-to-100 years imprisonment (Burchie murder), 100-to-200 years imprisonment (Huwe/Schneider) | July 19, 1973 | |
 | Surratt, Edward | August 8, 1941 (age 83) Aliquippa, Pennsylvania, United States | 1977 - 1978 | 1-18+ | July 2, 1978 | ||
 | Sutton, Nicholas | July 15, 1961 Morristown, Tennessee, United States | 1979 - 1985 | 4 | Death (Estep), Life imprisonment x3 (others) | December 25, 1979 | |
 | Swango, Joseph Michael | Dr. Death | October 21, 1954 (age 70) Tacoma, Washington, United States | 1981 - 1997 | 4-60 | Three consecutive life terms (without parole) | June 1997 |
 | Swann, James | The Shotgun Stalker, The D.C. Shotgun Stalker | 1964 Iselin, New Jersey, United States | February, 23 - April 19, 1993 | 4 (plus 5 injured) | ||
 | Swindler, John | May 12, 1944 Columbia, South Carolina, United States | 1970s - 1976 | 3 - 4 | Death | September 1976 | |
| Sylvanus, Anthony | 1954 Galloway, Ohio, United States | 1980 - 1981 | 4 - 5 | Life imprisonment | January 1981 | |
 | Taborsky, Joseph | Mad Dog | March 23, 1924 Hartford, Connecticut, United States | 1950 - 1957 | 7 | Death | February 23, 1957 |
 | Tavares, Daniel | 1966 Fall River, Massachusetts, United States | 1988 - 2007 | 4 | Life imprisonment without parole | November 2007 | |
 | Taylor, Alvin | 1947 Milwaukee, Wisconsin, United States | 1985 - 1987 | 4 | Involuntary commitment (murders), 20 years imprisonment (attempted murder) | April 3, 1987 | |
 | Taylor, Gary Addison | The Phantom Sniper, The Royal Oak Sniper | 1936 (age 88–89) Michigan, United States | 1950s - 1975 | 4 - 20 | Life imprisonment | 1975 |
 | Taylor, Ginger | Texas, United States | 1971 - 1972 | 22 | Life imprisonment | 1972 | |
 | Taylor, Kevin | June 11, 1974 (age 50) Chicago, Illinois, United States | June 25 - August 18, 2001 | 4 | Life imprisonment | August 20, 2001 | |
 | Taylor, Raymond | Texas, United States | 1971 - 1972 | 22 | Life imprisonment | 1972 | |
 | Taylor, Reuben | De Mau Mau Gang | 1950 Chicago, Illinois, United States | 1970 - 1972 | 9 | Life imprisonment | 1972 |
 | Tenneson, Michael | November 21, 1959 (age 65) Holmen, Wisconsin, United States | 1988 | 5 | Life imprisonment | 1988 | |
 | Teron, Gregory | 1953 St. Joseph, Michigan, United States | 1975 - 1977 | 3 - 5 | Death; commuted to life imprisonment | 1977 | |
 | Terrell, Bobbie | October 16, 1952 | 1984 | 4-12 | March 17, 1986 | ||
 | Terry, Charles Edward | May 26, 1930 Waterville, Maine, United States | 1951 - 1963 | 1-4+ | Death; commuted to life imprisonment | June 6, 1963 | |
 | Terry, Michael | 1960 (age 64–65) Tallassee, Alabama, United States | December 6, 1985 - October 21, 1986 | 6 | Life imprisonment (x6) | November 28, 1986 | |
 | Terry, Tyler | Modern-day version of Bonnie and Clyde | May 2021 | 5 (suspected) | Life imprisonment | May 24, 2021 | |
 | Tersargyan, Alberd | 1951 Armenian SSR | 2008 - 2010 | 4 | April 19, 2010 | ||
 | Tholmer, Brandon | The West Side Rapist | 1949 (age 74–75) New Orleans, Louisiana, United States | 1981 - 1983 | 12-34 | Life imprisonment | November 7, 1983 |
 | Thomas, John Floyd | The Southland Strangler, The Westside Rapist | July 26, 1936 (age 88) Los Angeles, California, United States | November 1972 - June 1986 | 7-15+ | 7 consecutive life sentences without the possibility of parole | |
 | Thomas, Mattie Troy | United States | 1909 - 1911 | 3 - 7+ | N/A | N/A | |
 | Thompson, Coleen | 1969 (age 55–56) Maryland, United States | 2002 - 2003 | 5 | 45 days and 18 months suspended sentence | 2003 | |
 | Thompson, William Paul | May 2, 1938 Wichita Falls, Texas, United States | 1983 - 1984 | 3 - 6 | April 21, 1984 | ||
 | Thoresen, William | Wild Bill | October 9, 1937 Chicago, Illinois, United States | 1957 - 1970 | 0 - 6+ | Various, none for murder | |
 | Thornburg, Jason | 1980 (age 44–45) Texas, United States | 2017 - 2021 | 5+ | December 2021 | ||
 | Tingler, Richard | December 1940 Cleveland, Ohio, United States | September - October 1968 | 6+ | Death; commuted to life imprisonment | 1968 | |
 | Tinning, Marybeth | September 11, 1942 (age 82) Duanesburg, New York, United States | 9 (charged for 3) | 20 years to life | |||
 | Toliver, James | United States | 1974 - 1980 | 1 - 5 | |||
 | Toole, Ottis | The Jacksonville Cannibal | March 5, 1947 Jacksonville, Florida, United States | 1961 - 1983 | 7-108 | Death, commuted to life in prison | June 15, 1983 |
 | Toppan, Jane | Jolly Jane | March 31, 1854 Boston, Massachusetts, United States | 1895 - 1901 | 12 confirmed, 31 confessed, more than 100 suspected | Not guilty by reason of insanity | October 29, 1901 |
 | Torgerson, David | July 16, 1943 Austin, Minnesota, United States | 1969 - 1973 | 6+ | N/A (died before trial) | 1973 | |
 | Tornow, John | The Wild Man of the Wynoochee | September 4, 1880 Washington, United States | 1911 - 1912 | 4 | N/A (died before trial) | N/A |
 | Torso Murderer, Cleveland | The Cleveland Torso Murders, Mad Butcher of Kingsbury Run, Mad Butcher of Cleveland | September 23, 1935 - August 16, 1938 | 12-20 | |||
| Townsend, Dick | 1863 Lowndes County, Georgia, United States | 3-4 | Death (Georgia) | December 31, 1885 | ||
 | Travis, Maury Troy | The Video Strangler, The St. Louis Video Strangler, The Bi-State Strangler | October 25, 1965 St. Louis, Missouri, United States | 2000 - 2002 | 12-17+ | June 7, 2002 | |
 | Trawick, Jack | February 18, 1947 Birmingham, Alabama, United States | 1972 - 1992 | 5-14 | |||
 | Trupp, Nathan | 1947 | 1988 | 5 | Committed to a psychiatric hospital | ||
 | Tuggle, Debra | 1958 (age 65–66) | 1974 - 1982 | 4-5 | 10 years in prison | March 1984 | |
 | Tulja, Smail | 1940 Plav, Plav Municipality, Montenegro, Yugoslavia | 1990 - 2006 | 1 - 8+ | 12 years imprisonment | 2007 | |
 | Ture, Joseph Donald | February 7, 1951 (age 73) St. Paul, Minnesota, United States | 1978 - 1980 | 6+ | Life imprisonment | October 30, 1980 | |
 | Turner, Chester Dewayne | The Southside Slayer | November 5, 1966 (age 58) Warren, Arkansas, United States | 1987 - 1998 | 15 - 16+ | Death | September 30, 2003 |
| Turner, Darryl | 1964 (age 60–61) District of Columbia, United States | 1995 - 1997 | 2 - 7 | Life imprisonment | 1997 | |
 | Turner, James | 1931 Florida, United States | 1963 - 1975 | 1 - 7 | 25-years-to-life imprisonment | 1975 | |
 | Vail, Felix | 1939 (age 84–85) Louisiana, United States | 1962 - 1984 | 1 - 7 | Life imprisonment | May 17, 2013 | |
 | Valley Killer, Lewis Clark | The Lewis Clark Valley Killer | 1979 - 1982 | 4-5 | |||
 | Van Dine, Harvey | 1883 Chicago, Illinois, United States | 8 | Death (1904) | 1904 | ||
 | Van Dyke, David | January 14, 1959 (age 65) | July 19, 1979 - April 25, 1980 | 6 killed, 1 survived | Life imprisonment (x6) + 40 years | May 23, 1980 | |
 | Vann, Darren Deon | The Indiana Killer | March 21, 1971 (age 53) Indiana, United States | 2013 - October 2014 | 7 convictions, possibly up to 18 killed | Life in prison without parole (seven concurrent terms) | October 18, 2014 |
 | Vermilya, Louise | July, 1868 Cook County, Illinois, United States | 1893 - 1911 | 9 | |||
 | Vidrine, Euzebe | July 1, 1898 Ville Platte, Louisiana, United States | 1920s - 1924 | 1 - 5 | Death | 1924 | |
 | Villarreal, David | October 12, 1955 (age 69) San Antonio, Texas, United States | 1979 – 1981 (confirmed)1974 – 1981 (suspected) | 5-7 | Life imprisonment (x5) | March 10, 1981 | |
 | Vines, Charles Ray | The River Valley Killer | [information missing ] Fort Smith, Arkansas, United States | 1993 - 2000 | 2 - 3 | Three life terms without the possibility of parole | 2000 |
 | Wade, Joshua Alan | March 13, 1980[1] Great Falls, Montana, United States | 1994 - 2007 | 5 | Life imprisonment (99 years) | September 2, 2007 | |
 | Walker, Anthony Guy | July 11, 1957 (age 67) Adrian, Michigan, United States | 1975 - 1986 | 6+ | Life imprisonment (x3) | 1994 | |
 | Walker, Clarence | February 25, 1929 Tennessee, United States | 1944 - 1965 | 1 - 16+ | 320 years imprisonment | 1965 | |
 | Walker, Tracy | 1964 (age 60–61) Mississippi, United States | 1991 - 2021 | 4+ | 16 years imprisonment (1993), Life imprisonment with possibility of parole (2021) | February 11, 2021 | |
 | Wallace, George | The Mad Paddler | February 13, 1941 Steubenville, Ohio, United States | 1976 - 1990 | 2 - 5 | Death | 1990 |
 | Wallace, Henry Louis | The Taco Bell Strangler | November 4, 1965 (age 59) Barnwell, South Carolina, United States | March 8, 1990 - March 8, 1994 | 11 | Death | March 12, 1994 |
 | Walls, Frank | October 12, 1967 (age 57) Ocean City, Florida United States | 1985 - 1987 | 5 | Death | July 24, 1987 | |
 | Walraven, James Samuel | The Bathtub Strangler | 1949 Decatur, Georgia, United States | April - June 1981 | 1 - 3 | Death; commuted to life imprisonment | July 14, 1981 |
| Walton, Edward | Wilkes County, Georgia, United States | 1896 - 1908 | 5 | Death | ||
 | Ward, Lucky | November 1, 1964 (age 60) | 4+ | Death | |||
 | Ward, Ronald | 1966 Hood River, Oregon, United States | August - December 2000 | 4+ | Life imprisonment | January 2001 | |
 | Wardrip, Faryion | March 6, 1959 (age 65) Salem, Indiana, United States | 1984 - 1986 | 5 | 35 years, possibility of parole (1986), Death (1999), Life, without parole (x3, 1999) | May 6, 1986 (murder of T. Kimbrew)February 14, 1999 (murders of T. Sims, T. Gibbs, E. Blau and D. Taylor) | |
 | Warren, Lesley Eugene | The Babyface Killer | October 15, 1967 (age 57) Candler, North Carolina, United States | 1987 - 1990 | 3 (convicted), 4 (confirmed), 8 (confessed) | Death (October 6, 1995; North Carolina) | July 21, 1990 |
 | Washington, Steven | Window-Screen Rapist | July 27, 1948 St Petersburg, Florida, United States | August - December 1963 | 3 | Life imprisonment | January 3, 1964 |
 | Waterfield, Fred | The Killing Cousins | September 29, 1952 (age 72) New Jersey United States | 1981 - 1983 | 6 | Two consecutive life sentences | July 26, 1983 |
 | Waters, David | March 24, 1947 Peoria, Illinois, United States | 1964 - 1995 | 6 | March 24, 1999 | ||
 | Watson, Alexander | September 24, 1969 (age 55) Anne Arundel County, Maryland, United States | 1986 - 1994 | 4 | Life imprisonment (x5) | 1994 | |
 | Watson, James P. | The Monster of the West Coast, The Enigma | July 3, 1871 Paris, Arkansas, United States | 1918 - 1920 | 7+ | Life imprisonment | 1920 |
 | Watts, Carl | The Sunday Morning Slasher | November 7, 1953 Killeen, Texas, United States | 1974 - May 23, 1982 | 14 (suspected to be 100) | 60 years in prison, plus Life imprisonment without parole | May 23, 1982 |
 | Webb, Emanuel Lovell | The East End Killer, The East End Strangler, The Bridgeport Killer, The Bridgeport Strangler | April 9, 1966 (age 58) Georgia, United States | 1990 - 1994 | 5+ (4 convictions) | November 2005 | |
 | Welch, Jonathan | 2000 Detroit, Michigan, United States | June - July 2022 | 4 | 65-to-110 years imprisonment | July 2022 | |
 | Wheeler-weaver, Khalil | Tagged Killer | April 20, 1996 (age 28) New Jersey, United States | August - November 2016 | 3 - 4 | 160 years in prison | |
 | Whisenhant, Thomas Warren | January 29, 1947 Prichard, Alabama, United States | May 6, 1963 - October 16, 1976 | 4+ | 20 years imprisonment with hard labor; commuted to 10 years imprisonment, Death (September 7, 1977) | October 17, 1976 | |
 | White, Garcia Glen | February 4, 1963 Houston, Texas, United States | 1989 - 1995 | 3 - 5 | Death | July 1995 | |
 | White, Nathaniel | July 26, 1960 (age 64) Poughkeepsie, New York, United States | March 25, 1991 - July 30, 1992 | 6 | 150 years to life in prison | August 2, 1992 | |
 | White, Richard Paul | 1973 United States | 2001 - 2003 | 3 - 6 | Life imprisonment | September 9, 2003 | |
 | White, Robert Jimmy | August 9, 1960 (age 64) Hartford, Connecticut, United States | 1980 - 2013 | 4 | 10-to-20 years imprisonment (1980), Life imprisonment (2013) | March 18, 2013 | |
 | Whiteling, Sarah Jane | The Wholesale Poisoner, The Philadelphia Poisoner, The Philadelphia Murderess | 1848 Germany (claimed) | March - May 1888 | 3 | Death | |
 | Wilder, Christopher Bernard | The Beauty Queen Killer, The Snapshot Killer | March 13, 1945 Sydney, Australia | February 1984 - April 1984 (confirmed) | 8+ | April 13, 1984 | |
 | Wiley, Nicholas Lee | The Syracuse Serial Killer | July 17, 1962 (age 62) Syracuse, New York, United States | 2004 | 3-7 | Life imprisonment without parole | June 2, 2004 |
 | Wilkerson, Clyde Carl | November 10, 1938 Willows, California, United States | 1965 - 1975 | 3 - 15+ | Death; commuted to life imprisonment | 2002 | |
 | Wille, John Francis | February 14, 1964 (age 60) LaPlace, Louisiana, United States | 1980 - 1985 | 6 | Life imprisonment (Texas), Death; commuted to life imprisonment (Louisiana) | August 6, 1985 | |
 | Williams, Charles Henry | March 17, 1956 Miami, Florida, United States | 1980s - 1992 | 1 - 32+ | N/A | 1992 | |
 | Williams, J. C. | 1875 (Williams claim) 1890 (official claim) Mitchell County, Georgia, (Williams claim) Dawson, Ge | 1920s - 1925 | 4 - 5 | Life imprisonment (Georgia), Death (Alabama) | March 1925 | |
 | Williams, John Robert | 1976 | 2003 - 2004 | 2 - 12 | Life imprisonment | August 2004 | |
 | Williams, Kenneth Dewayne | February 23, 1979 Pine Bluff, Arkansas, United States | 1998 - 1999 | 4 (including one killed unintentionally in a high-speed chase) | Death (August 30, 2000) | ||
 | Williams, Laron Ronald | 1949 | 1977 - 1981 | 3-5+ | 10 years imprisonment (Wedlaw murder), Death x2 (latter murders) | May 18, 1981 | |
 | Williams, Leslie Allen | July 4, 1953 (age 71) | 1991 - 1992 | 4 | Life imprisonment without parole | May 24, 1992 (final time) | |
 | Williams, Michael Wayne | 1968 Cumberland, Virginia, United States | 1992 - 1993 | 6 | Death; commuted to life imprisonment | 1993 | |
 | Williams, Tom | 1909 Colquitt County, Georgia, United States | 1940 - 1954 | 5 | Life imprisonment (1940), Death (1954) | 1954 | |
 | Williams, Wayne Bertram | Atlanta Child Murderer, Atlanta Monster, Atlanta Boogeyman | May 27, 1958 (age 66) Atlanta, Georgia, United States | Convicted of 2 murders, suspected of more | Life imprisonment | June 21, 1981 | |
 | Williams, William James | November 9, 1956 Youngstown, Ohio, United States | 1981 - 1991 | 4 - 10 | Death | 1991 | |
 | Williamson, Stella | January 22, 1904 Gallitzin, Pennsylvania, United States | 1925 - 1932 | 5 | N/A (died before crimes were discovered) | 1932 | |
 | Williamson, Thomas Andrew | April 23, 1831 Mackinaw Township, Illinois, United States | 1868; 1889 - 1890 | 4 | Death; commuted to 20 years imprisonment, Death | 1890 | |
 | Willie, Robert Lee | January 2, 1958 Mandeville, Louisiana, United States | 1978 - 1980 | 3-5 | Life imprisonment (Federal), Death (Louisiana) | ||
 | Wilson, Richard | 1972 (age 51–52) Georgia, United States | 1990 - 2014 | 3 - 7 | Life imprisonment | 2014 | |
 | Winkles, James | December 18, 1940 Oakman, Alabama, United States | 1967 - 1981 | 2 - 62 | Death | January 6, 1982 | |
 | Winters, Shirley | February 27, 1958 (age 66) New York, United States | 1966 - November 28, 2006 | 2-10 | March 2007 | ||
 | Wirth, Robert | 1960 (age 64–65) United States | 1987 - 1988 | 4 - 8 | Life imprisonment (x4) + 20 years in prison | ||
 | Wise, Martha | The Borgia of America | April 18, 1883 Hardscrabble, Ohio, United States | 1924 - 1925 | 3 (14 injured) | Life imprisonment | 1925 |
 | Wood, Catherine May | The Lethal Lovers, The Alpine Manor serial killers | March 7, 1962 (age 62) | January - February 1987 | 5 | 20-40 years imprisonment | December, 1988 |
 | Wood, David Leonard | Desert Killer, Skeeter | June 20, 1957 (age 67) Tom Green County, Texas, United States | May - August 1987 | 6-9 | Death | October 27, 1987 |
 | Wood, Frederick Charles | 1911 Elmira, New York, United States | 1926 - 1960 | 5 (3 convictions) | 20 years-to-life (Lowman), Death (Rescigno and Sess) | July 3, 1960 (final time) | |
 | Woodfield, Randall Brent | The I-5 Killer, The I-5 Bandit | December 26, 1950 (age 74) Salem, Oregon, United States | October 9, 1980 - February 15, 1981 | 1 convicted, linked to 18, suspect to be 44 | Life imprisonment plus 165 years | March 7, 1981 |
 | Wright, Douglas Franklin | March 25, 1940 Spirit Lake, Iowa, United States | 1969 - 1991 | 7+ (five convictions) | Death | ||
 | Wuornos, Aileen Carol | February 29, 1956 Rochester, Michigan, United States | November 30, 1989 - November 19, 1990 | 7 | Death (x6) (January 31 and May 15, 1992; November 1992; February 4, 1993) | January 9, 1991 | |
 | Young, Graham Frederick | China | 1883 | 1-17 | Death (1883) | 1883 |