Crime Solvers Central
Crime Solvers Central
302 Cases Solved. Advancing justice for missing persons, unsolved homicides, unidentified and unclaimed remains.
Robert Mailloux missing person case profile photo

Robert Mailloux Missing Person Case

Last seen in Petaluma, California on Feb 20, 1981

Create Press Release
Create Social Post
Create Flyer

Victim Details

Oct 29, 2013

Mar 17, 2021

Robert

Mailloux

74

29

71 inches

155 lbs

White / Caucasian

Male

Feb 20, 1981

Petaluma

California

Sonoma County

22830

Petaluma Police Department

Petaluma

California

Sonoma County

94952

969 Petaluma Boulevard North, California

7077784372

Local

Law Enforcement

http://cityofpetaluma.net/police/index.html

R81-193

Petaluma Police Department

Brown

Blue

Blue

Oct 8, 2026


Area Last Seen:

Case Description

Any updates on this case? Let us know!
Summary based on the NamUs case record (MP22512) and 5 other sources
Robert Joseph Mailloux, aged 29, was last seen on February 20, 1981, in Petaluma, California. He disappeared under unclear circumstances, and there have been no significant developments or leads in his case since that time. Mailloux is described as a Caucasian male, standing 5'11" tall, weighing approximately 155 pounds, with brown hair and blue eyes. At the time of his disappearance, few details were known about what he was wearing or carrying.

Despite the passage of over four decades, Mailloux's case remains unsolved, and authorities continue to classify him as a missing person. The Petaluma Police Department, which has jurisdiction over the case, encourages anyone with information to come forward. His dental and fingerprint records are available for comparison, but there has been no match or evidence to determine his whereabouts.
Last Seen: Feb 20, 1981

Links to Additional Sources (5)

See any mistakes? Let us know!
  • Missing Person / NamUs #MP22512
  • Robert Joseph Mailloux - The Charley Project
  • Robert Joseph Mailloux | State of California - Department of Justice
  • 971DMCA - Robert Joseph Mailloux - Doe Network
  • Sonoma County missing person cases - The Press Democrat

    • Possible Unidentified Matches (10)

    Unidentified remains cases whose details are consistent with this person, ranked by how closely they compare. Fields that are unknown in either case are left out of the score.

    84%Moderate
    John Doe — Berkeley, California - unidentified case UP53302
    John Doe — Berkeley, California
    UP53302 • Found Mar 19, 1985
    View case
    Sex ✓Male
    Age 100%Est. 20–30 vs 29 when missing
    Race 100%White
    Location 94%32 mi away, same state
    TimingFound 4 years after last seen
    Height 100%5'10" vs 5'11"
    Weight 97%137 lb vs 155 lb
    Hair 100%Brown vs Brown
    84%Moderate
    John Doe — San Francisco, California
    UP5872 • Found Oct 16, 1981
    View case
    Sex ✓Male
    Age 100%Est. 20–30 vs 29
    Race 100%White
    Location 94%34 mi away, same state
    TimingFound 8 months after last seen
    Height 100%5'10" vs 5'11"
    Weight 100%153 lb vs 155 lb
    Hair 100%Brown vs Brown
    Eyes 0%Brown vs Blue
    83%Moderate
    John Doe — Sausalito, California
    UP17718 • Found Sep 9, 1990
    View case
    Sex ✓Male
    Age 100%Est. 35–45 vs 29 when missing
    Race 100%White
    Location 95%27 mi away, same state
    TimingFound 10 years after last seen
    Height 100%5'11" vs 5'11"
    Weight 100%160 lb vs 155 lb
    Hair 100%Brown vs Brown
    Eyes 70%Gray vs Blue
    82%Moderate
    John Doe — Sausalito, California
    UP17743 • Found Feb 17, 1987
    View case
    Sex ✓Male
    Age 100%Est. 33–39 vs 29 when missing
    Race 100%White
    Location 95%27 mi away, same state
    TimingFound 6 years after last seen
    Height 100%5'10" vs 5'11"
    Weight 100%160 lb vs 155 lb
    Hair 60%Black vs Brown
    82%Moderate
    John Doe — Sacramento, California
    UP2404 • Found May 12, 1982
    View case
    Sex ✓Male
    Age 100%Est. 20–30 vs 29 when missing
    Race 100%White
    Location 89%49 mi away, same state
    TimingFound 15 months after last seen
    Height 100%5'10" vs 5'11"
    Weight 100%145 lb vs 155 lb
    Hair 100%Brown vs Brown
    Eyes 0%Brown vs Blue
    81%Moderate
    John Doe — Unincorporated - Brisbane, California
    UP9683 • Found Mar 6, 1984
    View case
    Sex ✓Male
    Age 85%Est. 20–40 vs 29 when missing
    Race 100%White
    Location 92%40 mi away, same state
    TimingFound 3 years after last seen
    Height 100%5'10" vs 5'11"
    Weight 88%180 lb vs 155 lb
    Hair 100%Brown vs Brown
    80%Moderate
    John Doe — Sausalito, California
    UP7082 • Found Aug 21, 2007
    View case
    Sex ✓Male
    Age 100%Est. 25–35 vs 29 when missing
    Race 100%White
    Location 95%27 mi away, same state
    TimingFound 26 years after last seen
    Height 100%5'10" vs 5'11"
    Weight 100%160 lb vs 155 lb
    Hair 100%Brown vs Brown
    Eyes 30%Hazel vs Blue
    80%Moderate
    John Doe — San Francisco, California
    UP5905 • Found Nov 30, 1984
    View case
    Sex ✓Male
    Age 85%Est. 18–35 vs 29 when missing
    Race 100%White
    Location 94%34 mi away, same state
    TimingFound 4 years after last seen
    Height 100%5'11" vs 5'11"
    Weight 97%137 lb vs 155 lb
    Hair 100%Brown vs Brown
    Eyes 0%Brown vs Blue
    79%Possible
    John Doe — California - unidentified case UP17689
    John Doe — California
    UP17689 • Found May 10, 1998
    View case
    Sex ✓Male
    Age 100%Est. 20–30 vs 29 when missing
    Race 100%White
    Location 99%12 mi away, same state
    TimingFound 17 years after last seen
    Height 84%5'9" vs 5'11"
    Weight 100%170 lb vs 155 lb
    Hair 100%Brown vs Brown
    Eyes 0%Brown vs Blue
    79%Possible
    John Doe — California
    UP17744 • Found Feb 11, 1986
    View case
    Sex ✓Male
    Age 90%Est. 35–40 vs 29 when missing
    Race 100%White
    Location 98%17 mi away, same state
    TimingFound 5 years after last seen
    Height 100%5'11" vs 5'11"

    These comparisons are generated automatically from public NamUs case data and are not confirmed identifications. Only DNA, dental or fingerprint comparison by investigators can confirm an identity. If you believe two cases are connected, contact the agency handling the unidentified case.

    Unidentified photos are blurred because many are post-mortem. Tap a photo to reveal it.

    Latest News

    View All

    Forum Posts (1)

    Robert Joseph Mailloux was 29 when he was last seen in Petaluma, California, on February 20, 1981.... ...Read More
    12/09/2024

    Other Missing Cases from Petaluma, California

    Timothy Mckernan missing person case in Petaluma, California

    Timothy Mckernan

    Missing: Apr 23, 1973
    Timothy Gerard McKernan, a 16-year-old from Petaluma, California, disappeared on April 23, 1973. ...Read More
    Robin Reed missing person case in Petaluma, California

    Robin Reed

    Missing: Jan 24, 1995
    Robin Ansel Reed, a 15-year-old sophomore from Petaluma, California, went missing on January 24 ...Read More
    Nolan Evans missing person case in Petaluma, California

    Nolan Evans

    Missing: Sep 11, 2025
    Fourteen-year-old Nolan Evans was last seen in Petaluma, California on September 11, 2025. His case ...Read More