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Case Description

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Summary based on the NamUs case record (MP69890) and 9 other sources
In the vast, blue expanse of the Pacific Ocean off the coast of Hawaii, a dedicated and highly skilled Navy SEAL, Petty Officer 1st Class Matthew John Leathers, tragically vanished. The 33-year-old California native was participating in a breath-hold training dive with his Naval Special Warfare unit in the waters off Kaena Point, Oahu, when he disappeared on February 19, 2013. The exercise involved a free swim approximately 150 yards from shore in water about 25 feet deep. Leathers, an experienced operator and the dive supervisor for the exercise, was among the last to enter the water. He and other members of his team were also spearfishing during the training swim. At some point during the dive, his comrades lost sight of him, and he did not resurface.

The moments after Matthew Leathers was reported missing sparked a massive and urgent search and rescue operation. For five days, a collaborative effort involving the U.S. Coast Guard, Navy, and Marine Corps, alongside the Honolulu Fire Department and Ocean Safety crews, scoured the ocean relentlessly. The search covered a staggering 24,000 square miles of the Pacific, a testament to the desperate hope of finding the missing SEAL. Despite these exhaustive efforts, there was no sign of Leathers. After five days of intensive searching, the U.S. Coast Guard made the difficult decision to call off their official search. His own Naval Special Warfare unit, however, continued the search for an additional 24 hours, holding out hope for their brother-in-arms. Tragically, their efforts were in vain, and Matthew Leathers was never found.

In the aftermath of the search, Matthew Leathers was officially declared deceased on February 27, 2013. A subsequent command investigation concluded that the likely cause of death was drowning due to a shallow-water blackout, a known risk in breath-hold diving. The investigation also revealed that the training exercise had been conducted with significant safety and procedural violations, including the lack of designated swim buddies. Leathers, remembered by his teammates as one of the most experienced operators, was wearing a weight belt which likely would have kept him submerged after a blackout. He was a husband and father, an ultra-endurance athlete, and a decorated warrior who had served multiple deployments. In recognition of his service and sacrifice, he was posthumously awarded the Bronze Star Medal with Valor. While his body was never recovered from the ocean, a cenotaph in his honor stands at Fort Rosecrans National Cemetery in San Diego, a permanent tribute to a hero lost to the sea. The case is now considered closed, a heartbreaking reminder of the inherent dangers faced by even the most elite service members during training.

Last Seen: Feb 19, 2013

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.

76%Possible
John Doe — Honolulu, Hawaii - unidentified case UP15422
John Doe — Honolulu, Hawaii
UP15422 • Found Jun 8, 2016
View case
Sex ✓Male
Age 85%Est. 30–49 vs 33 when missing
Race 100%White
Location 96%26 mi away, same county
TimingFound 3 years after last seen
Height 68%6'1" vs 5'10"
Weight 92%165 lb vs 145 lb
Hair 60%Black vs Brown
Eyes 0%Brown vs Blue

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.

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