Peter Michael Shaw was 21 and a junior at the University of California, Berkeley when he disappeared after leaving his apartment on October 4, 1973. He was last seen driving a light blue 1953 Pontiac Chieftain with California license plate 150ECO. Roommates reported him missing two days later when he did not return.

Shaw, originally from Canada, had spent the previous year touring Europe and was described as having a promising future. He left behind personal items including his checkbook, passport, and extra clothes, which suggests he did not plan an extended absence. No trace of him or his vehicle has ever been found, and there has been no indication of foul play.

Anyone who knew Peter, saw that Pontiac after October 4, 1973, or has information that could help the Berkeley Police Department is asked to come forward.