TACOMA, Wash. (MCT) — Staff Sgt. Robert Bales, accused in the shooting deaths of 17 Afghan civilians, showed risk factors for alcohol abuse, including acting out violently while drunk, but it's unclear whether the Army knew about this behavior or whether he ever was referred to treatment.

Bales, who's stationed at Joint Base Lewis-McChord nine miles outside Tacoma, Wash., is charged with gunning down four women, four men, seven girls and two boys in a pair of villages near a military outpost in Kandahar province on March 11.