John Henry Henderson, known as Monk, was 29 when he was murdered on April 16, 1978, in Cincinnati, Ohio. His body was found in the area of 746 Glenwood Avenue in Hamilton County. Death resulted from both gunshot wounds and stabbing injuries.

The Cincinnati Police Department has led the investigation and the case remains listed as an unsolved homicide by the Ohio Attorney General’s Office. The Ohio Bureau of Criminal Investigation has highlighted the case to increase visibility and support the local probe, but no suspects have been identified and investigators report no viable leads.

Anyone with information about John Henderson’s murder is asked to contact the Cincinnati Police Department or the agencies involved.