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 (MP90023) and 3 other sources
Marco Antonio Guarderas, 25 years old at the time, was last seen on January 4, 1985, at his home in Los Angeles, California. On the day of his disappearance, he was wearing a black jacket, blue corduroy pants, and gray shoes. Marco stood 5'7" tall, weighed around 200 pounds, and had brown hair and brown eyes. A distinguishing feature was the metal plate in his nose, a result of a prior medical procedure.

Despite the passage of time, few details have emerged about the circumstances surrounding his disappearance. Marco's case has remained unsolved, with no significant leads or updates. The Los Angeles Police Department continues to investigate and encourages anyone with information to come forward to assist in resolving this long-standing case.
Last Seen: Jan 4, 1985

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.

85%Strong
John Doe — Los Angeles, California
UP9482 • Found Nov 21, 1985
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Sex ✓Male
Age 100%Est. 20–35 vs 25
Race 100%Hispanic
Location 100%Same area, same county
TimingFound 11 months after last seen
Height 100%5'6" vs 5'7"
Weight 53%138 lb vs 200 lb
Hair 60%Black vs Brown
Eyes 100%Brown vs Brown
85%Strong
John Doe — Inglewood, California
UP152797 • Found Apr 28, 1986
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Sex ✓Male
Age 100%Est. 23–35 vs 25 when missing
Race 100%Hispanic
Location 100%9 mi away, same county
TimingFound 16 months after last seen
Height 100%5'6"–5'11" vs 5'7"
Weight 79%159 lb vs 200 lb
Hair 60%Black vs Brown
Eyes 100%Brown vs Brown
84%Moderate
John Doe — Hollywood, California - unidentified case UP3736
John Doe — Hollywood, California
UP3736 • Found May 15, 1993
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Sex ✓Male
Age 100%Est. 20–35 vs 25 when missing
Race 100%Hispanic
Location 100%6 mi away, same county
TimingFound 8 years after last seen
Height 100%5'5"–5'9" vs 5'7"
Weight 75%155 lb vs 200 lb
Hair 100%Brown vs Brown
Eyes 90%Black vs Brown
83%Moderate
John Doe — Los Angeles, California - unidentified case UP3582
John Doe — Los Angeles, California
UP3582 • Found Oct 7, 1995
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Sex ✓Male
Age 100%Est. 22–32 vs 25 when missing
Race 100%Hispanic
Location 100%3 mi away, same county
TimingFound 11 years after last seen
Height 100%5'8" vs 5'7"
Weight 95%175 lb vs 200 lb
Hair 60%Black vs Brown
Eyes 100%Brown vs Brown
83%Moderate
John Doe — Los Angeles, California - unidentified case UP4107
John Doe — Los Angeles, California
UP4107 • Found Nov 22, 1987
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Sex ✓Male
Age 100%Est. 25–35 vs 25 when missing
Race 100%Hispanic
Location 100%Same area, same county
TimingFound 3 years after last seen
Height 100%5'7" vs 5'7"
Weight 42%130 lb vs 200 lb
Hair 60%Black vs Brown
Eyes 100%Brown vs Brown
82%Moderate
John Doe — Los Angeles, California - unidentified case UP10366
John Doe — Los Angeles, California
UP10366 • Found Mar 1, 2012
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Sex ✓Male
Age 100%Est. 50–65 vs 25 when missing
Race 100%Hispanic
Location 98%17 mi away, same county
TimingFound 27 years after last seen
Height 100%5'7" vs 5'7"
Weight 100%200 lb vs 200 lb
Hair 100%Brown vs Brown
Eyes 100%Brown vs Brown
82%Moderate
John Doe — Arleta, California
UP7518 • Found Jun 7, 2008
View case
Sex ✓Male
Age 100%Est. 25–35 vs 25 when missing
Race 100%Hispanic
Location 98%17 mi away, same county
TimingFound 23 years after last seen
Height 100%5'6" vs 5'7"
Weight 85%165 lb vs 200 lb
Hair 100%Brown vs Brown
Eyes 100%Brown vs Brown
82%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 25 when missing
Race 100%Hispanic
Location 100%Same area, same county
TimingFound 11 years after last seen
Height 100%5'6" vs 5'7"
Weight 76%156 lb vs 200 lb
Hair 60%Black vs Brown
Eyes 100%Brown vs Brown
82%Moderate
John Doe — Los Angeles, California - unidentified case UP3603
John Doe — Los Angeles, California
UP3603 • Found Jun 10, 1995
View case
Sex ✓Male
Age 85%Est. 30–50 vs 25 when missing
Race 100%Hispanic
Location 100%Same area, same county
TimingFound 10 years after last seen
Height 100%5'8" vs 5'7"
Weight 97%177 lb vs 200 lb
Hair 100%Brown vs Brown
Eyes 100%Brown vs Brown
82%Moderate
John Doe — California
UP3740 • Found Apr 24, 1993
View case
Sex ✓Male
Age 100%Est. 22–32 vs 25 when missing
Race 100%Hispanic
Location 100%Same area, same county
TimingFound 8 years after last seen
Height 84%5'5" vs 5'7"
Weight 87%167 lb vs 200 lb
Hair 60%Black vs Brown
Eyes 100%Brown 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.