A patrol report says the April 29 death was the result of an inmate on inmate assault.
Lt. Craig Cvetan is a spokesman for the patrol. On Wednesday he identified the inmate who was killed as 43-year-old Michael Keeton.
Prison records show Keeton was serving a 3 1/2-year sentence for charges of escape and drug possession and was scheduled for release a year from September.
The medium-security prison about 50 miles south of Columbus houses about 2,700 male inmates including prisoners on the state’s death row.