1964 murder in New York City, associated with the bystander effect
In the early hours of March 13, 1964, Kitty Genovese, a 28-year-old bartender, was raped and stabbed outside the apartment building where she lived in the Kew Gardens neighborhood of Queens, New York, United States. Two weeks after the murder, The New York Times published an article erroneously claiming that thirty-eight witnesses saw or heard the attack, and that none of them called the police or came to her aid. The incident prompted inquiries into what became known as the bystander effect, or "Genovese syndrome", and the murder became a staple of U.S.
https://en.wikipedia.org/wiki/Murder_of_Kitty_Genovese