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Crime Solvers Central
298 Cases Solved. Advancing justice for missing persons, unsolved homicides, unidentified and unclaimed remains.

Case Description

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Summary based on the NamUs case record (MP14210) and 5 other sources
David Samuel Collette, age 51, was last seen on May 22, 1984, in Stockton, California. He left his home that morning to go to work but never arrived and has not been heard from since. His vehicle, a significant clue in the case, was discovered abandoned eight days later on May 30 in the parking lot of a Mervyn's Department Store in Lodi, California, approximately 14 miles from his home.

At the time of his disappearance, Collette was described as 6'1" tall, weighing around 185 pounds, with graying brown hair and brown eyes. He was wearing a light-colored shirt and work overalls and was known to wear wire-framed glasses. Distinctive physical features included a scar on the bridge of his nose and a surgical scar on his abdomen. Despite these details and extensive investigations, no leads have been found, and his case remains unsolved. Investigators continue to look for any information that might shed light on his whereabouts.

Last Seen: May 22, 1984

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.

82%Moderate
John Doe — Sacramento, California
UP2399 • Found Feb 20, 1986
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Sex ✓Male
Age 85%Est. 30–50 vs 51 when missing
Race 100%White
Location 92%41 mi away, same state
TimingFound 21 months after last seen
Height 100%6'1" vs 6'1"
Weight 93%210 lb vs 185 lb
Hair 100%Brown vs Brown
81%Moderate
John Doe — San Francisco, California
UP5919 • Found Apr 1, 1987
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Sex ✓Male
Age 85%Est. 40–60 vs 51 when missing
Race 100%White
Location 86%62 mi away, same state
TimingFound 3 years after last seen
Height 68%5'10" vs 6'1"
Weight 100%190 lb vs 185 lb
Physical features: Scar: surgical
79%Possible
John Doe — San Francisco, California
UP5927 • Found Oct 2, 1989
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Sex ✓Male
Age 85%Est. 30–50 vs 51 when missing
Race 100%White
Location 86%62 mi away, same state
TimingFound 5 years after last seen
Height 100%6'0" vs 6'1"
Weight 98%205 lb vs 185 lb
Hair 100%Brown vs Brown
78%Possible
John Doe — Sacramento, California
UP2364 • Found Jul 17, 2002
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Sex ✓Male
Age 85%Est. 55–75 vs 51 when missing
Race 100%White
Location 92%40 mi away, same state
TimingFound 18 years after last seen
Height 100%6'0" vs 6'1"
Weight 100%180 lb vs 185 lb
Hair 60%Black vs Brown
Eyes 100%Brown vs Brown
78%Possible
John Doe — Brentwood, California
UP12491 • Found Sep 14, 1985
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Sex ✓Male
Age 100%Est. 50–60 vs 51 when missing
Race 100%White
Location 97%21 mi away, same state
TimingFound 16 months after last seen
Height 68%5'10" vs 6'1"
Hair 40%Gray vs Brown
77%Possible
John Doe — Antioch, California - unidentified case UP10735
John Doe — Antioch, California
UP10735 • Found Oct 15, 2005
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Sex ✓Male
Age 85%Est. 45–65 vs 51 when missing
Race 100%White
Location 96%26 mi away, same state
TimingFound 21 years after last seen
Height 100%6'1" vs 6'1"
Weight 72%141 lb vs 185 lb
Hair 100%Brown vs Brown
77%Possible
John Doe — San Francisco, California
UP11460 • Found Jun 15, 1985
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Sex ✓Male
Age 85%Est. 25–50 vs 51 when missing
Race 100%White
Location 86%62 mi away, same state
TimingFound 13 months after last seen
Height 0%5'5" vs 6'1"
Weight 57%130 lb vs 185 lb
Hair 100%Brown vs Brown
Eyes 100%Brown vs Brown
Physical features: Scar: surgical
76%Possible
John Doe — Stockton, California
UP87371 • Found Sep 7, 2021
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Sex ✓Male
Age 100%Est. 50–60 vs 51 when missing
Race 60%Hispanic
Location 100%3 mi away, same county
TimingFound 37 years after last seen
Height 100%5'9"–6'0" vs 6'1"
Weight 100%161–170 lb vs 185 lb
Hair 70%Gray vs Brown
Eyes 100%Brown vs Brown
76%Possible
John Doe — San Jose, California
UP127425 • Found Jun 14, 1997
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Sex ✓Male
Age 100%Est. 38–52 vs 51 when missing
Race 100%White
Location 87%57 mi away, same state
TimingFound 13 years after last seen
Height 68%5'10" vs 6'1"
Weight 70%139 lb vs 185 lb
Hair 100%Brown vs Brown
76%Possible
John Doe — Sausalito, California
UP12220 • Found May 15, 2013
View case
Sex ✓Male
Age 100%Est. 45–60 vs 51 when missing
Race 100%White
Location 85%64 mi away, same state
TimingFound 29 years after last seen
Height 100%6'0" vs 6'1"
Weight 100%180 lb vs 185 lb

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.

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