Crime Solvers Central
Crime Solvers Central
302 Cases Solved. Advancing justice for missing persons, unsolved homicides, unidentified and unclaimed remains.

Case Description

Any updates on this case? Let us know!
Summary based on the NamUs case record (MP87923) and 1 other source
Ryohei Kikusui, a 36-year-old man from Japan, was last seen on July 2, 2013, while visiting San Francisco, California. He was staying in the city on vacation but never returned to his hotel that day, and has not been in contact with his family or friends since. His failure to return to Japan or report to work raised significant concerns.

On July 30, 2013, nearly a month after his disappearance, Kikusui's backpack was found on the sidewalk near the Golden Gate Bridge. However, no further traces of him were discovered, and the circumstances of his disappearance remain unknown. Kikusui was described as an Asian male, standing 5'6" tall, weighing about 128 pounds, with black hair and brown eyes. He may have worn glasses. Despite investigative efforts, there have been no significant leads in the case, and it remains unsolved.

Authorities continue to encourage anyone with information to come forward in hopes of solving the mystery of his disappearance.

Last Seen: Jul 2, 2013

Links to Additional Sources (1)

See any mistakes? Let us know!

Possible Unidentified Matches (5)

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.

82%Moderate
John Doe — Muir Beach, California - unidentified case UP14895
John Doe — Muir Beach, California
UP14895 • Found Mar 3, 2016
View case
Sex ✓Male
Age 88%Est. 25–35 vs 36 when missing
Race 100%Asian
Location 100%7 mi away, same state
TimingFound 3 years after last seen
Height 84%5'4" vs 5'6"
Weight 70%160 lb vs 128 lb
Hair 100%Black vs Black
Eyes 100%Brown vs Brown
77%Possible
John Doe — San Jose, California - unidentified case UP131998
John Doe — San Jose, California
UP131998 • Found Oct 20, 2024
View case
Sex ✓Male
Age 85%Est. 35–55 vs 36 when missing
Race 100%Asian
Location 91%45 mi away, same state
TimingFound 11 years after last seen
Height 100%5'5" vs 5'6"
Weight 13%186 lb vs 128 lb
Hair 100%Black vs Black
Eyes 100%Brown vs Brown
76%Possible
John Doe — Woodside, California - unidentified case UP97935
John Doe — Woodside, California
UP97935 • Found Sep 26, 2022
View case
Sex ✓Male
Age 100%Est. 45–60 vs 36 when missing
Race 100%Asian
Location 95%28 mi away, same state
TimingFound 9 years after last seen
Height 75%5'7"–6'3" vs 5'6"
76%Possible
John Doe — San Francisco, California
UP91414 • Found Jul 3, 2020
View case
Sex ✓Male
Age 100%Est. 38–52 vs 36 when missing
Location 100%6 mi away, same county
TimingFound 7 years after last seen
Height 100%5'7" vs 5'6"
Weight 75%99 lb vs 128 lb
75%Possible
John Doe — Sausalito, California - unidentified case UP72097
John Doe — Sausalito, California
UP72097 • Found Jul 23, 2020
View case
Sex ✓Male
Age 56%Est. 50–60 vs 36 when missing
Race 100%Asian
Location 100%5 mi away, same state
TimingFound 7 years after last seen
Height 100%5'7" vs 5'6"
Weight 70%160–170 lb vs 128 lb
Hair 40%Gray vs Black
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.