[Photograph 2012.201.B1295.0424]

Photograph used for a story in the Daily Oklahoman newspaper. Caption: "The convicted killer of a Tulsa policeman was fatally stabbed Thursday in an exercise yard of the Oklahoma State Penitentiary, the third inmate killed at a state prison in less than a month. Truman R. Trowbridge, 42, suffered multiple stab wounds in the neck, chest, back and arms during a knife fight about 12:30pm, said corrections department spokesman Jerry Massie.