Oklahoma Department of Corrections officials have identified the inmate killed Friday night at Oklahoma State Penitentiary as Anthony Palma.
A correctional officer on a routine security check found Palma around 7:30 p.m. unresponsive inside his maximum-security cell he shared with another inmate.
His cellmate is believed to be responsible for his death.
Medical staff could not revive Palma, and a doctor pronounced him dead at 8:55 p.m.
Palma was serving a life-without-parole sentence for first-degree murder out of Oklahoma County.
He had been in ODOC custody since December 2017.
