John Guinn was found dead in Dayton, Ohio, on August 26, 1985. Montgomery County authorities and the Dayton Police Department classified the death as a homicide.

Despite an investigation that included the Ohio Bureau of Criminal Investigation working with local police, the case remains unsolved and no suspects have been publicly identified. Details about how Guinn died or the circumstances leading to his death are not given. The case is listed among cold cases and authorities continue to ask anyone with information to contact the Dayton Police Department or submit a tip through the Ohio Attorney General’s unsolved homicides portal.

If anyone knew John Guinn or has information about what happened in Dayton on or before August 26, 1985, please come forward.