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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 (MP56322)
John Hansen, a 63-year-old man, was last seen on July 12, 1990, near the Napa River, north of State Route 37 in California. Hansen disappeared under circumstances that remain unclear, and all of his personal belongings were reportedly left behind. Despite searches and ongoing investigations, no substantial leads have emerged to explain his disappearance.

Hansen’s case has drawn concern due to the location near the Napa River, a challenging area for search efforts. The surrounding terrain and river conditions could have played a role, but authorities have been unable to confirm whether foul play, an accident, or another cause was involved. Despite the time that has passed since his disappearance, the case remains open, with authorities still hoping for any new information that could bring resolution to his family and loved ones.

The search for Hansen is part of a broader effort to address long-term missing persons cases in California. His family continues to seek answers, and law enforcement has called on the public for any tips that might help bring closure to this decades-old mystery.

Last Seen: Jul 12, 1990

Links to Additional Sources (0)

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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 — San Jose, California
UP126945 • Found Nov 23, 1992
View case
Sex ✓Male
Age 85%Est. 50–70 vs 63 when missing
Race 100%White
Location 87%59 mi away, same state
TimingFound 2 years after last seen
Height 100%5'8" vs 5'9"
Weight 100%175 lb vs 165 lb
Hair 100%Gray vs Gray
Eyes 100%Brown vs Brown
81%Moderate
John Doe — San Francisco, California
UP91361 • Found Feb 5, 2022
View case
Sex ✓Male
Age 100%Est. 60–70 vs 63 when missing
Race 100%White
Location 96%26 mi away, same state
TimingFound 32 years after last seen
Height 100%5'9" vs 5'9"
Weight 88%191 lb vs 165 lb
Hair 100%Gray vs Gray
Eyes 100%Brown vs Brown
81%Moderate
John Doe — San Francisco, California
UP5944 • Found Mar 30, 1996
View case
Sex ✓Male
Age 85%Est. 60–80 vs 63 when missing
Race 100%White
Location 96%25 mi away, same state
TimingFound 6 years after last seen
Height 84%5'11" vs 5'9"
Weight 100%155 lb vs 165 lb
Hair 100%Gray vs Gray
Eyes 100%Brown vs Brown
81%Moderate
John Doe — San Francisco, California - unidentified case UP146034
John Doe — San Francisco, California
UP146034 • Found Jan 22, 2014
View case
Sex ✓Male
Age 100%Est. 68–82 vs 63 when missing
Race 100%White
Location 96%25 mi away, same state
TimingFound 24 years after last seen
Height 100%5'8" vs 5'9"
Weight 100%83–150 lb vs 165 lb
Hair 100%Gray vs Gray
79%Possible
John Doe — San Francisco, California
UP5960 • Found Dec 25, 2004
View case
Sex ✓Male
Age 85%Est. 60–85 vs 63 when missing
Race 100%White
Location 96%24 mi away, same state
TimingFound 14 years after last seen
Height 100%5'10" vs 5'9"
Weight 90%190 lb vs 165 lb
Hair 70%Brown vs Gray
Eyes 100%Brown vs Brown
79%Possible
John Doe — San Francisco, California
UP5933 • Found Oct 12, 1991
View case
Sex ✓Male
Age 85%Est. 55–75 vs 63 when missing
Race 100%White
Location 96%25 mi away, same state
TimingFound 15 months after last seen
Height 84%5'7" vs 5'9"
Weight 50%112 lb vs 165 lb
Hair 100%Gray vs Gray
79%Possible
John Doe — San Francisco, California - unidentified case UP146018
John Doe — San Francisco, California
UP146018 • Found Jan 18, 2014
View case
Sex ✓Male
Age 94%Est. 48–62 vs 63 when missing
Race 100%White
Location 96%26 mi away, same state
TimingFound 24 years after last seen
Height 100%5'8" vs 5'9"
Weight 95%186 lb vs 165 lb
Hair 100%Gray vs Gray
78%Possible
John Doe — San Francisco, California
UP5945 • Found Apr 29, 1996
View case
Sex ✓Male
Age 85%Est. 55–75 vs 63 when missing
Race 100%White
Location 96%25 mi away, same state
TimingFound 6 years after last seen
Height 84%5'11" vs 5'9"
Weight 100%180 lb vs 165 lb
Hair 100%Gray vs Gray
Eyes 0%Blue vs Brown
78%Possible
John Doe — San Francisco, California - unidentified case UP146037
John Doe — San Francisco, California
UP146037 • Found Oct 10, 2014
View case
Sex ✓Male
Age 94%Est. 48–62 vs 63 when missing
Race 100%White
Location 95%30 mi away, same state
TimingFound 24 years after last seen
Height 100%5'5"–5'9" vs 5'9"
Weight 74%127 lb vs 165 lb
Hair 100%Gray vs Gray
77%Possible
John Doe — Saratoga, California
UP127298 • Found Apr 1, 1997
View case
Sex ✓Male
Age 94%Est. 48–62 vs 63 when missing
Race 100%White
Location 86%62 mi away, same state
TimingFound 7 years after last seen
Height 100%5'6"–5'9" vs 5'9"

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.