Paul Cosner was 39 when he disappeared from San Francisco on November 2, 1984. An auto broker, he left home that evening to meet a potential buyer for his gold 1980 Honda Prelude — a man Cosner had told his girlfriend was weird — and never returned. His car vanished with him.

In 1985 police detained Leonard Lake in South San Francisco and found Cosner’s stolen car with some of his belongings in the trunk. That discovery helped expose Lake and his accomplice Charles Ng, who had been luring victims to a remote Wilseyville cabin where they tortured and killed people. Lake later swallowed a cyanide pill and died; Ng fled to Canada and was later returned to the United States. Cosner’s body was never recovered, and in 2001 a San Francisco Superior Court judge ruled he’d been murdered by Lake and Ng, allowing his family to hold a memorial service.

Cosner’s disappearance was the first major lead that led investigators to Lake and Ng. Does anyone have memories of seeing Cosner’s 1980 gold Honda Prelude or information about his last known meeting on November 2, 1984?