A second US soldier was convicted of murder in the summary executions of four bound and blindfolded Iraqi detainees in 2007 after entering a guilty plea at his court-martial.
Sgt Joseph Mayo, 27, was sentenced to 35 years in prison, along with a reduction in rank to private, forfeiture of all pay and a dishonourable discharge.
He pleaded guilty to charges of premeditated murder and conspiracy to commit premeditated murder at the proceeding at the US army's Rose Barracks in Vilseck, southern Germany. His lawyer said Mayo would testify against another soldier involved in the incident and could be eligible for parole in about 10 years.