JOINT BASE LEWIS-MCCHORD, Wash. ??? A jury of six soldiers was selected Tuesday to determine whether the U.S. soldier who killed 16 Afghan civilians during raids on two villages last year will ever have a chance at getting out of prison.Staff Sgt. Robert Bales, 39, pleaded guilty in June to avoid the death penalty for killing the civilians, mostly women and children, before dawn on March 11, 2012.