FILE - In this Aug. 23, 2011 file photo provided by the Defense Video & Imagery Distribution System, Army Staff Sgt. Robert Bales participates in an exercise at the National Training Center at Fort Irwin, Calif.  Bales, 39, accused of killing 16 Afghan civilians during a 2012 rampage, faces another preliminary hearing Tuesday. Defense lawyers for Robert Bales and military prosecutors were convening at Joint Base Lewis-McChord, south of Seattle. Bales is to be court-martialed on premeditated murder and other charges in the attack on two villages in southern Afghanistan. The Ohio native and father of two is accused of slaying mostly women and children during pre-dawn raids on March 11, 2012.  (AP Photo/DVIDS, Spc. Ryan Hallock, File)
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