Ronald Choo was 36 when he went missing after a solo fishing trip to the Pupukea area on Oahu’s North Shore. He left home on Saturday, September 11, 1976, dressed for fishing—reports say he was likely wearing a mesh golf hat and slippers—and did not return that night.

The next morning his wife found his white Volkswagen coupe parked unattended on Ke Iki Road in Haleiwa. A tackle box with his keys inside was located on the sand nearby, and searchers later recovered a single slipper on the beach. The Honolulu Fire Department conducted a search and rescue effort and the Honolulu Police Department opened an investigation, but no further trace of Choo was reported.

The available details point to a sudden, unexplained disappearance along a rugged stretch of shoreline. If anyone was fishing in the Pupukea area that day or remembers seeing Choo’s car or personal items, please share what you know.