An Army sergeant based at Fort Stewart was sentenced Wednesday to life in a military prison without parole for shooting and killing his infantry squad leader and another U.S. soldier in Iraq after they criticized him for poor performance. According to the associated Press the military jury’s sentence also calls for Sgt. Joseph Bozicevich, 41, of Minneapolis to be demoted in rank to private and to receive a dishonorable discharge. The same court-martial convicted him of premeditated murder May 25 in the slayings of Staff Sgt. Darris Dawson of Pensacola, Fla., and Sgt. Wesley Durbin of Dallas at a small patrol base outside Baghdad on Sept. 14, 2008.