(Associated Press) A medical examiner said Wednesday that a former soldier hanged himself at a federal prison where he was serving life sentences for raping and killing a teenage Iraqi girl and using a shotgun to slay her family.

Pima County, Ariz., Deputy Chief Medical Examiner Dr. Eric Peters said an autopsy completed Tuesday concluded that 28-year-old Steven Dale Green’s cause of death was suicide by hanging. Prison officials found him in his cell Saturday at the federal penitentiary in Tucson.

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