Ricky Callahan, 34, left his home in Catoosa County, Georgia one evening in November 1984 to buy headache medicine and never returned. The next morning his body was found in a remote rock pit; he had suffered two gunshot wounds to the head. His wallet, watch, and car were missing, but the headache powders he had gone to buy were still on him.

Investigators treated the case as a robbery turned deadly. Leads eventually traced the victim’s car to Oneida, Tennessee, where Larry Eugene Moon was arrested in possession of the vehicle. Authorities recovered several firearms in the car, including a .22 caliber handgun later identified as the murder weapon, and witnesses reported seeing Moon with Callahan’s wallet the night of the killing. Moon denied involvement but was convicted and sentenced to death.