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 (MP38672) and 3 other sources
Mark Harrison, aged 42, was last seen on September 20, 2004, in Jacksonville Beach, Florida. His disappearance occurred during a hurricane, which has added complexity to the search efforts. Harrison has not been heard from since, and few details are available regarding the circumstances leading up to his disappearance. His case remains open, with authorities and family members still seeking answers. He is described as a Caucasian male with brown hair, standing 5'4" tall and weighing approximately 130 pounds. The investigation into his case continues.
Last Seen: Sep 20, 2004

Possible Unidentified Matches (3)

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 — Ormond Beach, Florida - unidentified case UP1021
John Doe — Ormond Beach, Florida
UP1021 • Found Jan 27, 2006
View case
Sex ✓Male
Age 85%Est. 20–45 vs 42 when missing
Race 100%White
Location 83%72 mi away, same state
TimingFound 16 months after last seen
Height 100%5'6" vs 5'4"–5'5"
Weight 98%155 lb vs 130–140 lb
Hair 100%Brown vs Brown
Eyes 0%Blue vs Brown
77%Possible
John Doe — Winter Garden, Florida - unidentified case UP1027
John Doe — Winter Garden, Florida
UP1027 • Found Dec 8, 2004
View case
Sex ✓Male
Age 100%Est. 36–45 vs 42
Race 100%White
Location 71%119 mi away, same state
TimingFound 3 months after last seen
Height 100%5'6" vs 5'4"–5'5"
75%Possible
John Doe — Orlando, Florida
UP79499 • Found Nov 10, 2019
View case
Sex ✓Male
Age 100%Est. 38–52 vs 42 when missing
Race 100%White
Location 70%125 mi away, same state
TimingFound 15 years after last seen
Height 84%5'2" vs 5'4"–5'5"
Weight 100%129 lb vs 130–140 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.