Bryan Keeney was a 32-year-old Fairmont City Police Department officer who was found dead on November 4, 1984, at Cahokia Mounds State Historic Site. His body was discovered next to his patrol car in the museum parking lot; the cause of death was gunfire. Reports say the shooting grew out of a personal feud with another individual and that retaliation was the motive.

Investigators concluded the shooter was the son of another police officer. At trial the shooter was convicted of murder and sentenced to 30 years in prison; the defense argued the shooting was accidental. During proceedings it was disclosed that Bryan Keeney had been involved in a romantic relationship with the shooter’s wife, a detail that figures prominently in accounts of the conflict. Keeney had served three years with the department and was survived by his wife and three children.

If anyone knew Bryan, his family, or has information about the events leading up to the shooting, please share what you can.