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 (MP51759) and 6 other sources
Robert Carl Rock, a 26-year-old from Millbrae, California, was last seen on May 3, 1995. He left home that day telling his father he was going to church and would return within an hour. However, he never came back and has not been seen since. Rock had a history of schizophrenia and was on medication, including Lithium and Risperdal, to manage his condition. His mental state at the time of his disappearance may have contributed to his vanishing. He also reportedly blamed himself for large-scale disasters, such as the Oklahoma City bombing and earthquakes, further indicating his fragile mental health.

Physically, Rock is described as being 6'3", weighing between 150 to 160 pounds, with brown hair and blue eyes. He had several distinguishing features, including a scar under his left eye, a knot on his forehead, and past fractures in his right hip and jaw. He was last seen wearing a blue and red Pendleton shirt, dark blue slacks, and white high-top sneakers. Despite being an active individual, known for his interest in music and computers, no significant clues about his whereabouts have emerged, and his case remains unsolved.

The San Mateo County Sheriff's Office continues to investigate the case, and Robert is classified as an endangered missing person. His family and law enforcement have been seeking information for decades but have not received any concrete leads.

Last Seen: May 3, 1995

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.

80%Moderate
John Doe — Brisbane, California - unidentified case UP12987
John Doe — Brisbane, California
UP12987 • Found Sep 17, 2014
View case
Sex ✓Male
Age 100%Est. 20–35 vs 26 when missing
Race 100%White
Location 100%7 mi away, same county
TimingFound 19 years after last seen
Height 100%6'0" vs 6'1"–6'3"
Weight 100%175 lb vs 160–170 lb
79%Possible
John Doe — Sausalito, California
UP12220 • Found May 15, 2013
View case
Sex ✓Male
Age 94%Est. 45–60 vs 26 when missing
Race 100%White
Location 98%19 mi away, same state
TimingFound 18 years after last seen
Height 100%6'0" vs 6'1"–6'3"
Weight 100%180 lb vs 160–170 lb
79%Possible
John Doe — Sausalito, California
UP7082 • Found Aug 21, 2007
View case
Sex ✓Male
Age 100%Est. 25–35 vs 26 when missing
Race 100%White
Location 98%19 mi away, same state
TimingFound 12 years after last seen
Height 68%5'10" vs 6'1"–6'3"
Weight 100%160 lb vs 160–170 lb
Hair 100%Brown vs Brown
Eyes 30%Hazel vs Blue
78%Possible
John Doe — San Francisco, California
UP5946 • Found Jul 7, 1996
View case
Sex ✓Male
Age 75%Est. 30–50 vs 26 when missing
Race 100%White
Location 99%12 mi away, same state
TimingFound 14 months after last seen
Height 84%5'11" vs 6'1"–6'3"
Weight 84%200 lb vs 160–170 lb
77%Possible
John Doe — Napa, California
UP69733 • Found Dec 14, 2007
View case
Sex ✓Male
Age 100%Est. 28–42 vs 26 when missing
Race 100%White
Location 89%49 mi away, same state
TimingFound 13 years after last seen
Height 100%6'0"–6'3" vs 6'1"–6'3"
77%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 26 when missing
Race 100%White
Location 92%39 mi away, same state
TimingFound 3 years after last seen
Height 52%5'9" vs 6'1"–6'3"
Weight 100%170 lb vs 160–170 lb
Hair 100%Brown vs Brown
Eyes 0%Brown vs Blue
76%Possible
John Doe — Guerneville, California
UP79380 • Found Jul 18, 1995
View case
Sex ✓Male
Age 100%Est. 25–35 vs 26
Race 100%White
Location 83%70 mi away, same state
TimingFound 3 months after last seen
Height 52%5'5"–5'9" vs 6'1"–6'3"
Hair 100%Brown vs Brown
76%Possible
John Doe — California - unidentified case UP2363
John Doe — California
UP2363 • Found Mar 9, 2003
View case
Sex ✓Male
Age 100%Est. 30–45 vs 26 when missing
Race 100%White
Location 80%84 mi away, same state
TimingFound 8 years after last seen
Height 84%5'11" vs 6'1"–6'3"
Hair 100%Brown vs Brown
75%Possible
John Doe — Sausalito, California - unidentified case UP7083
John Doe — Sausalito, California
UP7083 • Found Dec 12, 2006
View case
Sex ✓Male
Age 88%Est. 17–25 vs 26 when missing
Race 100%White
Location 98%19 mi away, same state
TimingFound 12 years after last seen
Height 36%5'8" vs 6'1"–6'3"
Weight 100%170 lb vs 160–170 lb
Hair 60%Black vs Brown
Eyes 100%Blue vs Blue

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.