Account
| 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 |