In 1989 Rebecca Schaeffer, co-star of the TV sitcom My Sister Sam, was a twenty-one year old actress on her way up, having recently finished a film directed by Dyan Cannon.
On July 18, 1989, her doorbell rang. Because the apartment complex intercom wasn't working, she went downstairs to see who it was and saw a young man in a yellow shirt outside the door. She didn't know him and returned to her apartment.
An hour later, her bell rang again. She went down to the door and saw the same man. This time she opened the door and told him he was wasting her time. That was a mistake.