Clayton Nobuo Onosaki was 20 when he was last seen in Los Angeles on July 1, 1978. He mailed a letter to his mother saying he might travel to San Diego with a coworker, but there is no confirmation he ever went there and he was never heard from again.

Described as a Pacific Islander, Clayton had black hair, brown eyes, stood 5 feet 2 inches and weighed about 150–170 pounds. He had no distinguishing tattoos or marks. No trace of him or new investigative leads has been reported, and the disappearance remains unsolved with little media attention over the years.

Does anyone have information about Clayton’s movements in Los Angeles or a possible coworker who might have been with him on July 1, 1978?