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 (MP90693) and 8 other sources
Joseph Patrick Hannigan, a 53-year-old man, was last seen on March 6, 2022, in St. Petersburg, Florida. On the evening of his disappearance, he left his residence near 49th Street and 5th Avenue South around 7:30 p.m. carrying only a small backpack. Hannigan left behind his phone, wallet, and car, which raised concerns among his family. He was last seen wearing a gray long-sleeved shirt and gray shorts.

At the time of his disappearance, Hannigan was reportedly struggling with depression and post-traumatic stress disorder (PTSD), following a series of personal tragedies. He was known to frequent local beaches in Pinellas County, but no significant clues have surfaced regarding his whereabouts. Despite searches and appeals for information, his case remains unsolved. The St. Petersburg Police Department continues to investigate, and family members have sought public assistance to locate him.
Last Seen: Mar 6, 2022

Possible Unidentified Matches (1)

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.

77%Possible
John Doe — Homosassa, Florida
UP142032 • Found Sep 13, 2024
View case
Sex ✓Male
Age 100%Est. 48–62 vs 53 when missing
Race 100%White
Location 83%72 mi away, same state
TimingFound 3 years after last seen
Height 84%5'3"–5'7" vs 5'9"–5'10"

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.