Salvatore Mineo Jr. (January 10, 1939 – February 12, 1976) was an American actor, singer, and director. He is best known for his role as John "Plato" Crawford in the drama film Rebel Without a Cause (1955), which earned him a nomination for the Academy Award for Best Supporting Actor, making him the fifth-youngest nominee in the category.Mineo also starred in films such as Crime in the Streets, Giant (both 1956), Exodus (1960), for which he won a Golden Globe and received a second Academy Award nomination, The Longest Day (1962), John Ford’s final western Cheyenne Autumn, and Escape from the Planet of the Apes (1971).On the night of February 12, 1976, the actor returned home following a rehearsal for the play P.S. Your Cat Is Dead. After parking his car in the carport below his West Hollywood apartment, the 37-year-old was stabbed in the heart by a mugger who fled the scene and died after returning home