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 (MP13983) and 8 other sources
Mark Allen Thompson, a 30-year-old man from Clearwater, Florida, was last seen on November 1, 2001, after leaving the Pro Shop Pub in downtown Clearwater. Thompson lived with his mother, and when he failed to show up for work the next day, she reported him missing. Several days later, on November 5, his 1998 Ford Ranger pickup truck was discovered abandoned in Tampa, but there was no sign of Mark, nor any indication of foul play in the vehicle.

Thompson had been diagnosed with bipolar disorder and required medication, which he may not have had with him at the time of his disappearance. Investigators have explored various possibilities, including links to other missing persons cases from the area, many of whom, like Thompson, were gay men in a similar age range. Some speculation ties his case to potential serial offenders, but no concrete evidence has emerged to confirm this.

Despite extensive searches and ongoing investigations, Mark Thompson's disappearance remains unsolved. Authorities continue to seek new information in hopes of finding answers.

Last Seen: Nov 1, 2001

Possible Unidentified Matches (7)

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.

79%Possible
John Doe — Tampa, Florida - unidentified case UP78
John Doe — Tampa, Florida
UP78 • Found May 21, 2006
View case
Sex ✓Male
Age 100%Est. 30–35 vs 30 when missing
Race 100%White
Location 98%19 mi away, same state
TimingFound 5 years after last seen
Height 68%5'7" vs 5'10"
Weight 100%172 lb vs 160 lb
Hair 40%Gray vs Brown
79%Possible
John Doe — Tarpon Springs, Florida - unidentified case UP116
John Doe — Tarpon Springs, Florida
UP116 • Found Jan 12, 2005
View case
Sex ✓Male
Age 85%Est. 35–60 vs 30 when missing
Race 100%White
Location 99%13 mi away, same county
TimingFound 3 years after last seen
Height 100%5'9" vs 5'10"
78%Possible
John Doe — Miami, Florida
UP6085 • Found Apr 29, 2002
View case
Sex ✓Male
Age 100%Est. 25–35 vs 30
Race 100%White
Location 53%221 mi away, same state
TimingFound 6 months after last seen
Height 100%5'11" vs 5'10"
Weight 93%182 lb vs 160 lb
Hair 100%Brown vs Brown
Eyes 100%Brown vs Brown
75%Possible
John Doe — Orlando, Florida - unidentified case UP2299
John Doe — Orlando, Florida
UP2299 • Found Nov 11, 2007
View case
Sex ✓Male
Age 100%Est. 25–35 vs 30 when missing
Race 100%White
Location 76%95 mi away, same state
TimingFound 6 years after last seen
Height 52%5'6" vs 5'10"
Weight 100%160 lb vs 160 lb
Hair 60%Black vs Brown
Eyes 100%Brown vs Brown
75%Possible
John Doe — Immokalee, Florida - unidentified case UP4911
John Doe — Immokalee, Florida
UP4911 • Found Jun 2, 2006
View case
Sex ✓Male
Age 100%Est. 18–30 vs 30 when missing
Race 100%White
Location 68%137 mi away, same state
TimingFound 5 years after last seen
Height 68%5'7" vs 5'10"
Weight 78%194 lb vs 160 lb
Hair 60%Black vs Brown
Eyes 100%Brown vs Brown
75%Possible
John Doe — Miami, Florida - unidentified case UP1031
John Doe — Miami, Florida
UP1031 • Found Aug 26, 2004
View case
Sex ✓Male
Age 85%Est. 25–50 vs 30 when missing
Race 100%White
Location 53%221 mi away, same state
TimingFound 3 years after last seen
Height 100%5'10" vs 5'10"
Weight 100%152 lb vs 160 lb
Hair 100%Brown vs Brown
Eyes 100%Brown vs Brown
75%Possible
John Doe — Miami, Florida
UP6083 • Found Apr 29, 2002
View case
Sex ✓Male
Age 85%Est. 20–40 vs 30
Race 100%White
Location 53%221 mi away, same state
TimingFound 6 months after last seen
Height 100%5'10" vs 5'10"
Weight 70%120 lb vs 160 lb
Hair 100%Brown 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.