Crime Solvers Central
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 (MP15072) and 4 other sources
Adan Jacquez Hernandez, a 21-year-old man, was last seen on July 4, 1997, in south Stockton, California. He reportedly left his home that day for unknown reasons and has not been heard from since. Prior to his disappearance, Adan had not spoken with his family for about five days. He had a history of mental health issues, which may have contributed to his decision to leave, but no specific details about his departure have surfaced.

At the time he went missing, Adan was described as a Hispanic male with black hair and brown eyes, standing 5'8" tall and weighing approximately 150 pounds. He had a slight mustache and beard, and his left eye drooped slightly. He was last seen wearing a blue and white checkered shirt, black pants, and sandals.

Despite ongoing investigations, Adan's whereabouts remain unknown, and his case is considered unresolved under suspicious circumstances. The Stockton Police Department continues to handle his case, and they encourage anyone with information to come forward.

Last Seen: Jul 4, 1997

Possible Unidentified Matches (9)

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.

85%Strong
John Doe — Stockton, California - unidentified case UP50599
John Doe — Stockton, California
UP50599 • Found Jul 12, 1997
View case
Sex ✓Male
Age 100%Est. 20–30 vs 21
Race 100%White
Location 100%8 mi away, same county
TimingFound 8 days after last seen
Height 100%5'7" vs 5'8"
Weight 100%135 lb vs 150–155 lb
Hair 60%Black vs Brown
84%Moderate
John Doe — California - unidentified case UP17689
John Doe — California
UP17689 • Found May 10, 1998
View case
Sex ✓Male
Age 100%Est. 20–30 vs 21
Race 100%White
Location 82%74 mi away, same state
TimingFound 10 months after last seen
Height 100%5'9" vs 5'8"
Weight 100%170 lb vs 150–155 lb
Hair 100%Brown vs Brown
Eyes 100%Brown vs Brown
79%Possible
John Doe — San Jose, California - unidentified case UP125517
John Doe — San Jose, California
UP125517 • Found Feb 11, 1998
View case
Sex ✓Male
Age 100%Est. 18–32 vs 21
Race 100%White
Location 90%46 mi away, same state
TimingFound 7 months after last seen
Height 36%5'3" vs 5'8"
Weight 87%125 lb vs 150–155 lb
Hair 100%Brown vs Brown
Eyes 100%Brown vs Brown
79%Possible
John Doe — Sausalito, California
UP7082 • Found Aug 21, 2007
View case
Sex ✓Male
Age 100%Est. 25–35 vs 21 when missing
Race 100%White
Location 87%58 mi away, same state
TimingFound 10 years after last seen
Height 84%5'10" vs 5'8"
Weight 100%160 lb vs 150–155 lb
Hair 100%Brown vs Brown
Eyes 60%Hazel vs Brown
78%Possible
John Doe — Sausalito, California - unidentified case UP7083
John Doe — Sausalito, California
UP7083 • Found Dec 12, 2006
View case
Sex ✓Male
Age 100%Est. 17–25 vs 21 when missing
Race 100%White
Location 87%58 mi away, same state
TimingFound 9 years after last seen
Height 100%5'8" vs 5'8"
Weight 100%170 lb vs 150–155 lb
Hair 60%Black vs Brown
Eyes 0%Blue vs Brown
76%Possible
John Doe — Wilton, California - unidentified case UP16897
John Doe — Wilton, California
UP16897 • Found Apr 2, 2012
View case
Sex ✓Male
Age 85%Est. 25–45 vs 21 when missing
Race 100%White
Location 93%36 mi away, same state
TimingFound 15 years after last seen
Height 68%5'5" vs 5'8"
Weight 100%151 lb vs 150–155 lb
Hair 60%Black vs Brown
Eyes 100%Brown vs Brown
76%Possible
John Doe — Turlock, California
UP50957 • Found Jul 11, 2001
View case
Sex ✓Male
Age 54%Est. 30–45 vs 21 when missing
Race 100%White
Location 91%42 mi away, same state
TimingFound 4 years after last seen
Height 100%5'7" vs 5'8"
Weight 100%130–180 lb vs 150–155 lb
Hair 100%Brown vs Brown
76%Possible
John Doe — Iselton, California
UP2365 • Found Feb 18, 2002
View case
Sex ✓Male
Age 100%Est. 23–35 vs 21 when missing
Race 100%White
Location 97%21 mi away, same state
TimingFound 5 years after last seen
Height 68%5'5" vs 5'8"
Weight 10%79 lb vs 150–155 lb
Hair 60%Black vs Brown
75%Possible
John Doe — Vallejo, California
UP17598 • Found Sep 2, 2003
View case
Sex ✓Male
Age 100%Est. 25–35 vs 21 when missing
Race 100%White
Location 90%48 mi away, same state
TimingFound 6 years after last seen
Height 68%5'5" vs 5'8"
Hair 40%Gray vs Brown

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.