Patrick Alan Oliver was 21 and an honor-roll pre-med student when he was murdered on July 13, 1975, near Walla Walla, Washington. He had recently returned from studying at the Sorbonne in Paris and was picnicking with his friend Susan Savage, a recent Washington State University graduate, when both were attacked by 23-year-old Robert Lee Yates Jr., who was on a hunting trip. Oliver was shot three times in the head; Savage was shot twice. Both victims had defensive wounds and their bodies were dragged across the river and hidden under a tire and brush.

Authorities initially considered motives including robbery or a professional hit, but those theories were not substantiated. The murders remained unsolved for years until Yates was arrested in April 2000; he later confessed to the killings as part of a plea deal. The case is noted as an early crime in a pattern of killings Yates admitted to.

Does anyone have memories or information about the area near Walla Walla in July 1975 that could shed more light on what happened that day?