Yolanda Washington was 19 when she was murdered on October 17, 1977; her body was found the next day near Forest Lawn Memorial Park in Los Angeles. Her killing is described as the first in a series later attributed to the pair known as the Hillside Stranglers.

The two men later identified in the case are Kenneth Bianchi and Angelo Buono Jr., who were connected to at least ten murders between October 1977 and February 1978. Investigators initially thought a single offender was responsible, but body positions and witness reports led them to conclude two people were involved; Bianchi’s arrest in January 1979 in Washington state is described as a turning point in linking him to the Los Angeles killings. Both men were later convicted on multiple counts including kidnapping, rape, torture, and murder.

What details about Yolanda Washington’s last known movements or the area around Forest Lawn might still help someone remember seeing her or hearing something the night of October 17, 1977?