Scott Murray Campbell, 27, vanished after boarding a private plane in Anaheim, California, on April 16, 1982. He had arranged to fly with two men, Lawrence Larry Cowell and Donald Dimascio, reportedly bound for Fargo, North Dakota, but the aircraft instead flew west over the Pacific Ocean.

Investigators say Campbell was likely killed during the flight and believe his body was thrown into the ocean near Catalina Island. The motive is described as a drug-related robbery. Campbell’s Pantera sports car was later found in Cowell’s possession; Cowell was stripping and selling its parts. Cowell and Dimascio were arrested and convicted for Campbell’s murder; Cowell was sentenced to 25 years to life and Dimascio to life without parole. Campbell’s remains have not been recovered, so the location of his body remains unknown.