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Case Description

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Summary based on the NamUs case record (MP41410)
Frank Langan, a 53-year-old man from Jupiter, Florida, was reported missing on June 17, 2005. A retired member of the New York Police Department's emergency service unit, Langan was an experienced diver. He went missing while diving a few miles off the coast of Jupiter. Despite extensive search efforts involving the U.S. Coast Guard and other local authorities, Langan was not found, and the circumstances surrounding his disappearance remain unclear.

Langan’s case was particularly tragic given his background as a highly trained diver who had participated in numerous challenging dives during his career. His disappearance left a deep impact on his colleagues and the communities he served, both in New York and in Florida. His case remains open, with authorities encouraging anyone with information to come forward, though the search has long been suspended.

The diving community, along with those close to Langan, reflected on the risks inherent in the sport and emphasized the importance of diving safety, particularly the use of the buddy system. His disappearance serves as a somber reminder of the potential dangers even experienced divers face in the water.

Last Seen: Jun 17, 2005

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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.

75%Possible
John Doe — Boynton Beach, Florida - unidentified case UP104173
John Doe — Boynton Beach, Florida
UP104173 • Found Jun 26, 2022
View case
Sex ✓Male
Age 100%Est. 58–72 vs 53 when missing
Race 100%White
Location 95%28 mi away, same county
TimingFound 17 years after last seen
Height 75%5'9"–6'5" vs 6'1"

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.