From Ohio History Central
On August 20, 1968, prisoners at the Ohio Penitentiary rioted. Inmates in cell blocks C and D took nine guards prisoner. The inmates proceeded to riot, setting several buildings on fire and stealing from the cafeteria, the commissary, and the prison hospital.
The inmates quickly delivered demands to the warden. Among these demands were a call for several guards to be fired, amnesty for the rioters, and a presentation of the rioters’ demands to the media.
The warden agreed to allow the prisoners to speak with the media, but he quickly ended the news conference when violence erupted among the rioters. The inmates threatened to burn the nine hostages alive. They also warned prison officials that they were willing to decapitate one of the guards, although they stated that they would free the hostages if the prisoners’ demands appeared in the newspaper.
The Ohio Highway Patrol, prison guards, National Guardsmen, and the Columbus Police planned a rescue attempt for August 20, but it became too late in the day for the law officers to carry out the plan. Negotiations continued the remainder of August 20, but the situation continued to deteriorate. At approximately 12:00 PM on August 21, an inmate stabbed another inmate, and officers decided to react. At 2:50 PM, police stormed the cell blocks. The prisoners kept the hostages on the top level of the prison. The rescue team blew a hole in the prison’s roof and freed the hostages, while other officers blew a hole in one of the prison's walls and fought their way up from the ground floor. Another detachment of officers regained control of cell blocks C and D from the prisoners, ending the riot. Five inmates died in the riots, while five additional prisoners and seven officers were injured.