Sal Mineo's murder. Gay.

There is controversy about whether or not his murder was the result of an interlude with a male prostitute or not.

1976
February 12
Actor Sal Mineo is killed in Hollywood

Actor Sal Mineo is stabbed to death in Hollywood, California. Mineo was parking his car behind his apartment when neighbors heard his cries for help. Some described a white man with brown hair fleeing the scene. By the time they reached Mineo, he was almost dead from a deep wound to his chest. He died minutes later.

Sal Mineo was a famous teen actor in the 1950s. He co-starred with James Dean in both Rebel Without a Cause and Giant. The transition to adult roles did not come easily for Mineo, but he later appeared in films such as The Longest Day and Escape From the Planet of the Apes, and consistently performed guest spots on television series. On the night he was killed, Mineo was returning from rehearsing for a play.

For two years, the police searched in vain for clues to the killer’s identity. At first, they suspected that Mineo’s work for prison reform had put him in contact with a dangerous ex-con. Then their focus shifted to Mineo’s personal life. Investigators had discovered that his home was filled with pictures of nude men. But the homosexual pornography also failed to turn up any leads.

https://www.history.com/this-day-in-history/actor-sal-mineo-is-killed-in-hollywood