The state medical examiner has concluded the death of an Oklahoma County inmate was a homicide.
The Oklahoman reports 53-year-old Ricky Windle died because of complications of blunt force trauma. He died Feb. 5 in a hospital after being found unconscious and alone in a cell the day before.
An autopsy shows Windle was beaten at the jail Jan. 10 and had three broken ribs.
Windle had been jailed for failing to register as a sex offender.
Acting Sheriff P.D. Taylor says resentment toward sex offenders is common in jails and prisons and sometimes leads to violence.
Authorities said two inmates were identified as suspects through surveillance video. They have not been charged.
Windle's son, Corey Windle, says knowing what led to his father's death gives his family closure.