On the night of Friday, November 17, 1978, just after 11:00; four young employees of a Speedway, Indiana, Burger Chef restaurant located at 5725 N. Crawfordsville Road disappeared. They were kidnapped during what was believed to be a botched robbery. The murdered bodies of Jayne Friedt, Daniel Davis, Mark Flemmonds, and Ruth Ellen Shelton were found that Sunday afternoon over 20 miles (32 km) away in a rural Johnson County, Indiana woods. Daniel Davis and Ruth Ellen Shelton had been shot multiple times execution-style. Jayne Friedt had been stabbed twice in the chest. The handle of the knife had broken off and was missing; the blade was recovered at autopsy. Mark Flemmonds had suffered a blunt force head injury, possibly from running into a tree while trying to escape. It is later determined that he had been beaten prior to his death.
According to a 16-year-old eyewitness, two suspicious men were in a car outside the Burger Chef just before closing on Friday night. Both were white and in their 30s. One man had a beard, and the other was clean-shaven with light colored hair. 
The case was never solved, despite thousands of hours of investigation and a Burger Chef offer of $25,000 for information that could lead to its resolution.