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298 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 (MP52198) and 8 other sources
In the early hours of Christmas morning, a young man named Michael Cannon left his family's home in the Kahala area of Honolulu, Hawaii. The 18-year-old left a note, informing his family that he was heading out for a day of hiking on Tantalus, a well-known mountainous area. The previous evening, he had mentioned to his mother his desire to visit the bamboo forest on the trail. He was expected to return in the late afternoon to join his family for their Christmas dinner. When he failed to come home that evening, his mother grew worried and contacted the police to report him missing. The following morning, the search began, and soon, his 1966 Chevrolet was discovered parked at the top of Tantalus, but Michael was nowhere to be found.

The search for Michael quickly escalated into one of the most extensive and costly search and rescue operations in Hawaii's history at that time. Official and volunteer search parties scoured the dense and rugged terrain of Tantalus, but no trace of the young hiker was found. Michael's mother, heir to a significant fortune, funded a massive and prolonged private search effort that continued for months. This exhaustive search involved bringing in specially trained search dogs from Canada and professional mountaineers from California to navigate the challenging landscape. In her desperation to find her son, she also consulted with psychics from as far away as Ireland and the Netherlands. Despite these extraordinary measures, the only potential piece of evidence ever recovered was a t-shirt belonging to Michael, which was found months after he disappeared.

Over the years, the disappearance of Michael Cannon has remained an unsolved mystery. At the time of his disappearance, he was described as being 5'11' and weighing between 165 and 175 pounds, with brown hair and brown eyes. He was last seen wearing blue jeans, a white t-shirt with 'Judson School' printed on the front, and tan hiking boots. He was well-equipped for his hike, carrying an olive-drab backpack that contained a canteen, a first-aid kit, a map, a Polaroid camera, and high-energy candy bars. Two separate hikers did report seeing a young man who matched Michael's description on Tantalus on Christmas Day. One sighting occurred around noon, and another was later in the afternoon near the bamboo forest, where a witness had a brief conversation with the young man about the view. The case officially remains open with the Honolulu Police Department, a lingering story of a young man who went for a holiday hike and seemingly vanished, leaving behind only questions and a profound sense of loss for his family.

Last Seen: Dec 25, 1966

Possible Unidentified Matches (8)

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.

83%Moderate
John Doe — Honolulu, Hawaii
UP6925 • Found Jul 7, 1987
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Sex ✓Male
Age 100%Est. 19–29 vs 18 when missing
Race 100%White
Location 100%9 mi away, same county
TimingFound 21 years after last seen
Height 100%5'11" vs 5'11"
Weight 94%143 lb vs 165–175 lb
Hair 100%Brown vs Brown
Eyes 100%Brown vs Brown
81%Moderate
John Doe — Honolulu, Hawaii
UP6851 • Found May 1, 1969
View case
Sex ✓Male
Age 85%Est. 20–40 vs 18 when missing
Race 100%White
Location 100%4 mi away, same county
TimingFound 2 years after last seen
Height 84%5'9" vs 5'11"
Weight 88%138 lb vs 165–175 lb
Hair 100%Brown vs Brown
77%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 18 when missing
Race 100%White
Location 100%4 mi away, same county
TimingFound 49 years after last seen
Height 84%6'1" vs 5'11"
Weight 100%165 lb vs 165–175 lb
Hair 60%Black vs Brown
Eyes 100%Brown vs Brown
77%Possible
John Doe — Haleiwa, Hawaii
UP6920 • Found May 24, 1983
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Sex ✓Male
Age 85%Est. 19–40 vs 18 when missing
Race 100%White
Location 96%25 mi away, same county
TimingFound 16 years after last seen
Height 100%6'0" vs 5'11"
Hair 100%Brown vs Brown
76%Possible
John Doe — Honolulu, Hawaii
UP6928 • Found Apr 19, 1996
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Sex ✓Male
Age 100%Est. 45–55 vs 18 when missing
Race 100%White
Location 100%4 mi away, same county
TimingFound 29 years after last seen
Height 84%5'9" vs 5'11"
Hair 70%Gray vs Brown
76%Possible
John Doe — Waimanalo, Hawaii
UP5580 • Found Jul 18, 1993
View case
Sex ✓Male
Age 100%Est. 35–45 vs 18 when missing
Race 100%White
Location 100%9 mi away, same county
TimingFound 27 years after last seen
Height 84%5'9" vs 5'11"
76%Possible
John Doe — Honolulu, Hawaii
UP6907 • Found Feb 24, 1979
View case
Sex ✓Male
Age 100%Est. 20–35 vs 18 when missing
Race 100%White
Location 100%4 mi away, same county
TimingFound 12 years after last seen
Height 52%5'7" vs 5'11"
Weight 89%139 lb vs 165–175 lb
Hair 100%Brown vs Brown
Eyes 0%Gray vs Brown
75%Possible
John Doe — Haleiwa, Hawaii
UP6926 • Found Sep 26, 1989
View case
Sex ✓Male
Age 70%Est. 45–55 vs 18 when missing
Race 100%White
Location 96%25 mi away, same county
TimingFound 23 years after last seen
Height 84%5'9" vs 5'11"
Weight 87%137 lb vs 165–175 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.

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