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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 (MP9589) and 3 other sources
Robert Franco Rivera, aged 45, was last seen on July 28, 1977, in Oxnard, California. However, his last confirmed contact with his family dates back to 1963, when he sent them a letter from an address in Oxnard. Since then, his whereabouts have remained unknown. The circumstances surrounding his disappearance remain unclear, and there has been no additional communication or clues regarding his fate.

Rivera was described as a Hispanic male, standing 5'6" tall and weighing approximately 140 pounds, with black hair and brown eyes. Despite the long passage of time, his case remains open, and efforts to resolve it continue through databases like NamUs and the involvement of the Oxnard Police Department. His family has not had any contact with him since the 1960s, which makes his disappearance especially mysterious.

Last Seen: Jul 28, 1977

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.

80%Moderate
John Doe — Van Nuys, California - unidentified case UP3052
John Doe — Van Nuys, California
UP3052 • Found Nov 4, 2005
View case
Sex ✓Male
Age 100%Est. 40–50 vs 45 when missing
Race 100%Hispanic
Location 91%42 mi away, same state
TimingFound 28 years after last seen
Height 100%5'6" vs 5'6"
Weight 100%131 lb vs 140 lb
Hair 100%Black vs Black
Eyes 60%Brown vs Hazel
80%Moderate
John Doe — Los Angeles, California - unidentified case UP3551
John Doe — Los Angeles, California
UP3551 • Found Feb 4, 1996
View case
Sex ✓Male
Age 100%Est. 30–45 vs 45 when missing
Race 100%Hispanic
Location 88%54 mi away, same state
TimingFound 19 years after last seen
Height 100%5'6" vs 5'6"
Weight 97%156 lb vs 140 lb
Hair 100%Black vs Black
Eyes 60%Brown vs Hazel
80%Moderate
John Doe — Los Angeles, California
UP10665 • Found Feb 26, 1994
View case
Sex ✓Male
Age 100%Est. 50–65 vs 45 when missing
Race 100%Hispanic
Location 89%50 mi away, same state
TimingFound 17 years after last seen
Height 100%5'4"–5'8" vs 5'6"
Weight 100%140 lb vs 140 lb
Hair 100%Black vs Black
Eyes 60%Brown vs Hazel
80%Moderate
John Doe — Canoga Park, California - unidentified case UP10664
John Doe — Canoga Park, California
UP10664 • Found Jan 14, 1994
View case
Sex ✓Male
Age 100%Est. 35–50 vs 45 when missing
Race 100%Hispanic
Location 94%32 mi away, same state
TimingFound 16 years after last seen
Height 84%5'0"–5'4" vs 5'6"
Weight 100%115–135 lb vs 140 lb
Hair 100%Black vs Black
Eyes 60%Brown vs Hazel
79%Possible
John Doe — Pacoima, California
UP3436 • Found Oct 15, 1997
View case
Sex ✓Male
Age 100%Est. 42–52 vs 45 when missing
Race 100%Hispanic
Location 91%44 mi away, same state
TimingFound 20 years after last seen
Height 100%5'6" vs 5'6"
Weight 81%167 lb vs 140 lb
Hair 100%Black vs Black
Eyes 60%Brown vs Hazel
79%Possible
John Doe — Los Angeles, California - unidentified case UP3485
John Doe — Los Angeles, California
UP3485 • Found Dec 5, 1996
View case
Sex ✓Male
Age 100%Est. 49–59 vs 45 when missing
Race 100%Hispanic
Location 88%54 mi away, same state
TimingFound 19 years after last seen
Height 100%5'7" vs 5'6"
Weight 91%160 lb vs 140 lb
Hair 100%Black vs Black
Eyes 60%Brown vs Hazel
79%Possible
John Doe — Los Angeles, California - unidentified case UP4212
John Doe — Los Angeles, California
UP4212 • Found Dec 5, 1984
View case
Sex ✓Male
Age 85%Est. 36–56 vs 45 when missing
Race 100%Hispanic
Location 88%54 mi away, same state
TimingFound 7 years after last seen
Height 100%5'5" vs 5'6"
Weight 100%148 lb vs 140 lb
Hair 100%Black vs Black
Eyes 60%Brown vs Hazel
79%Possible
John Doe — California - unidentified case UP4215
John Doe — California
UP4215 • Found Sep 15, 1984
View case
Sex ✓Male
Age 85%Est. 35–55 vs 45 when missing
Race 100%Hispanic
Location 88%54 mi away, same state
TimingFound 7 years after last seen
Height 100%5'6" vs 5'6"
Weight 100%153 lb vs 140 lb
Hair 100%Black vs Black
Eyes 60%Brown vs Hazel
79%Possible
John Doe — California
UP4431 • Found Apr 2, 1978
View case
Sex ✓Male
Age 100%Est. 43–53 vs 45
Race 60%White
Location 88%54 mi away, same state
TimingFound 8 months after last seen
Height 100%5'5" vs 5'6"
Weight 100%130 lb vs 140 lb
Hair 100%Black vs Black
Eyes 60%Brown vs Hazel
78%Possible
John Doe — Inglewood, California - unidentified case UP94798
John Doe — Inglewood, California
UP94798 • Found Jun 21, 2022
View case
Sex ✓Male
Age 100%Est. 55–65 vs 45 when missing
Race 100%Hispanic
Location 89%50 mi away, same state
TimingFound 45 years after last seen
Height 100%5'3"–5'5" vs 5'6"
Weight 100%135–150 lb vs 140 lb
Hair 100%Black vs Black
Eyes 60%Brown vs Hazel

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.