George Frias, 45, was one of the victims of the killer known as the Skid Row Slasher in Los Angeles. His death occurred on January 29, 1975; his throat was cut and his body was left staged with ritualistic markings, consistent with the attacker’s earlier victims. The Slasher’s pattern included throat slashing and the placement of items such as cups of blood and rings of salt at scenes.

Investigators initially focused on a white suspect, which delayed identification of the actual perpetrator. The killer’s spree, which had resumed in December 1974 after a long hiatus, led to multiple murders of homeless and transient people across the city; arrests followed in early February 1975. If anyone knew George Frias or has information about his movements in late January 1975, can you help investigators?