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 (MP41007) and 3 other sources
Andrzej Kosmakski, age 39, was last seen on May 10, 2000, in San Francisco, California. His disappearance remains unsolved, and there have been very few details available about the circumstances surrounding his case. At the time of his disappearance, Kosmakski was described as a Caucasian male, 5'10" tall, weighing around 174 pounds, with brown hair and brown eyes. He may also go by the last name "Kosmalski."

Authorities, including the San Francisco Police Department, have kept the case open but have not reported any significant developments. Kosmakski’s case is listed in various missing persons databases, such as the National Missing and Unidentified Persons System (NamUs) and the California Department of Justice. Investigators continue to seek public assistance in solving this case.

If you have any information regarding his whereabouts, you are encouraged to contact the San Francisco Police Department.

Last Seen: May 10, 2000

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 Francisco, California
UP91361 • Found Feb 5, 2022
View case
Sex ✓Male
Age 100%Est. 60–70 vs 39 when missing
Race 100%White
Location 100%4 mi away, same county
TimingFound 22 years after last seen
Height 100%5'9" vs 5'10"
Weight 100%191 lb vs 174 lb
Hair 70%Gray vs Brown
Eyes 100%Brown vs Brown
80%Moderate
John Doe — Sausalito, California
UP12220 • Found May 15, 2013
View case
Sex ✓Male
Age 100%Est. 45–60 vs 39 when missing
Race 100%White
Location 100%7 mi away, same state
TimingFound 13 years after last seen
Height 84%6'0" vs 5'10"
Weight 100%180 lb vs 174 lb
80%Moderate
John Doe — California - unidentified case UP2363
John Doe — California
UP2363 • Found Mar 9, 2003
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Sex ✓Male
Age 100%Est. 30–45 vs 39 when missing
Race 100%White
Location 82%75 mi away, same state
TimingFound 3 years after last seen
Height 100%5'11" vs 5'10"
Hair 100%Brown vs Brown
80%Moderate
John Doe — San Francisco, California - unidentified case UP146037
John Doe — San Francisco, California
UP146037 • Found Oct 10, 2014
View case
Sex ✓Male
Age 100%Est. 48–62 vs 39 when missing
Race 100%White
Location 100%5 mi away, same county
TimingFound 14 years after last seen
Height 100%5'5"–5'9" vs 5'10"
Weight 64%127 lb vs 174 lb
Hair 70%Gray vs Brown
80%Moderate
John Doe — San Francisco, California - unidentified case UP146018
John Doe — San Francisco, California
UP146018 • Found Jan 18, 2014
View case
Sex ✓Male
Age 100%Est. 48–62 vs 39 when missing
Race 100%White
Location 100%1 mi away, same county
TimingFound 14 years after last seen
Height 84%5'8" vs 5'10"
Weight 100%186 lb vs 174 lb
Hair 70%Gray vs Brown
79%Possible
John Doe — Turlock, California
UP50957 • Found Jul 11, 2001
View case
Sex ✓Male
Age 100%Est. 30–45 vs 39 when missing
Race 100%White
Location 78%88 mi away, same state
TimingFound 14 months after last seen
Height 68%5'7" vs 5'10"
Weight 100%130–180 lb vs 174 lb
Hair 100%Brown vs Brown
79%Possible
John Doe — San Francisco, California
UP5965 • Found Dec 27, 2006
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Sex ✓Male
Age 85%Est. 40–60 vs 39 when missing
Race 100%White
Location 100%2 mi away, same county
TimingFound 7 years after last seen
Height 100%5'9" vs 5'10"
Weight 75%135 lb vs 174 lb
Hair 40%Gray vs Brown
78%Possible
John Doe — Milpitas, California - unidentified case UP59937
John Doe — Milpitas, California
UP59937 • Found Sep 29, 2018
View case
Sex ✓Male
Age 100%Est. 55–70 vs 39 when missing
Race 100%White
Location 93%37 mi away, same state
TimingFound 18 years after last seen
Height 100%5'11" vs 5'10"
Weight 45%115 lb vs 174 lb
Hair 70%Gray vs Brown
Eyes 60%Hazel vs Brown
77%Possible
John Doe — Milpitas, California
UP72156 • Found Jun 14, 2018
View case
Sex ✓Male
Age 100%Est. 50–60 vs 39 when missing
Race 100%White
Location 93%37 mi away, same state
TimingFound 18 years after last seen
Height 100%5'7"–5'11" vs 5'10"
77%Possible
John Doe — San Jose, California - unidentified case UP57876
John Doe — San Jose, California
UP57876 • Found Oct 15, 2017
View case
Sex ✓Male
Age 100%Est. 48–62 vs 39 when missing
Race 100%White
Location 92%42 mi away, same state
TimingFound 17 years after last seen
Height 100%5'11" vs 5'10"
Weight 2%260 lb vs 174 lb
Hair 70%Gray 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.