Peter C. Ng was 29 when he was last seen in San Francisco on March 20, 1981. He is described as 6 feet tall, 140 to 160 pounds, with black hair and brown eyes. Few details about the circumstances of his disappearance are available, and there has been little public information about leads or developments.

Authorities and family continue to seek information; the San Francisco Police Department has dental records but lacks DNA and fingerprints. Does anyone who knew Peter or was in San Francisco in March 1981 have information that could help?