Crime Solvers Central
Crime Solvers Central
302 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 (MP10787) and 5 other sources
Jeffrey Allen Coonradt, a 27-year-old Army sergeant stationed at Fort Ord, California, went missing on December 20, 1987. Originally from New York, Coonradt was last seen when a friend dropped him off in Marina, California, near the military base. He was wearing a turquoise and maroon pullover, blue jeans, and white Nike high-top sneakers at the time.

His family, who remained in New York, noted that his disappearance was out of character, and foul play is suspected. Despite an investigation, including offers of a reward for information, no significant leads have emerged, and Coonradt has never been found. His case remains open, with authorities continuing to search for answers regarding his disappearance.
Last Seen: Dec 20, 1987

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.

79%Possible
John Doe — Turlock, California
UP50957 • Found Jul 11, 2001
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Sex ✓Male
Age 100%Est. 30–45 vs 27 when missing
Race 100%White
Location 81%79 mi away, same state
TimingFound 14 years after last seen
Height 100%5'7" vs 5'8"
Weight 100%130–180 lb vs 170 lb
Hair 100%Brown vs Brown
78%Possible
John Doe — Burlingame, California
UP9898 • Found Oct 5, 1995
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Sex ✓Male
Age 100%Est. 33–46 vs 27 when missing
Race 100%White
Location 82%77 mi away, same state
TimingFound 8 years after last seen
Height 100%5'7" vs 5'8"
Weight 87%142 lb vs 170 lb
Hair 100%Brown vs Brown
Eyes 0%Brown vs Blue
77%Possible
John Doe — San Jose, California
UP127425 • Found Jun 14, 1997
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Sex ✓Male
Age 88%Est. 38–52 vs 27 when missing
Race 100%White
Location 90%45 mi away, same state
TimingFound 9 years after last seen
Height 84%5'10" vs 5'8"
Weight 84%139 lb vs 170 lb
Hair 100%Brown vs Brown
77%Possible
John Doe — San Jose, California
UP124017 • Found May 4, 1990
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Sex ✓Male
Age 100%Est. 28–42 vs 27 when missing
Race 60%Hispanic
Location 89%50 mi away, same state
TimingFound 2 years after last seen
Height 100%5'7" vs 5'8"
Weight 100%157 lb vs 170 lb
Hair 100%Brown vs Brown
Eyes 0%Brown vs Blue
76%Possible
John Doe — California - unidentified case UP17689
John Doe — California
UP17689 • Found May 10, 1998
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Sex ✓Male
Age 100%Est. 20–30 vs 27 when missing
Race 100%White
Location 71%118 mi away, same state
TimingFound 10 years after last seen
Height 100%5'9" vs 5'8"
Weight 100%170 lb vs 170 lb
Hair 100%Brown vs Brown
Eyes 0%Brown vs Blue
76%Possible
John Doe — Stockton, California - unidentified case UP50599
John Doe — Stockton, California
UP50599 • Found Jul 12, 1997
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Sex ✓Male
Age 100%Est. 20–30 vs 27 when missing
Race 100%White
Location 76%98 mi away, same state
TimingFound 10 years after last seen
Height 100%5'7" vs 5'8"
Weight 79%135 lb vs 170 lb
Hair 60%Black vs Brown
76%Possible
John Doe — Palo Alto, California - unidentified case UP127061
John Doe — Palo Alto, California
UP127061 • Found May 23, 1994
View case
Sex ✓Male
Age 85%Est. 30–50 vs 27 when missing
Race 100%White
Location 86%61 mi away, same state
TimingFound 6 years after last seen
Height 100%5'7"–5'9" vs 5'8"
Weight 100%157–172 lb vs 170 lb
Hair 60%Black vs Brown
Eyes 0%Brown vs Blue
76%Possible
John Doe — San Francisco, California
UP5935 • Found Jan 18, 1993
View case
Sex ✓Male
Age 100%Est. 30–45 vs 27 when missing
Race 100%White
Location 78%91 mi away, same state
TimingFound 5 years after last seen
Height 84%5'10" vs 5'8"
Weight 100%165 lb vs 170 lb
Hair 60%Black vs Brown
Eyes 0%Brown vs Blue
76%Possible
John Doe — San Francisco, California - unidentified case UP146018
John Doe — San Francisco, California
UP146018 • Found Jan 18, 2014
View case
Sex ✓Male
Age 100%Est. 48–62 vs 27 when missing
Race 100%White
Location 78%90 mi away, same state
TimingFound 26 years after last seen
Height 100%5'8" vs 5'8"
Weight 100%186 lb vs 170 lb
Hair 70%Gray vs Brown
75%Possible
John Doe — Milpitas, California
UP72156 • Found Jun 14, 2018
View case
Sex ✓Male
Age 100%Est. 50–60 vs 27 when missing
Race 100%White
Location 87%59 mi away, same state
TimingFound 30 years after last seen
Height 100%5'7"–5'11" vs 5'8"

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.