Two soldiers are pictured at a memorial service in Fort Hood in Killeen, Texas April 9, 2014. Last week, Army Spc. Ivan A. Lopez killed three and injured 16 others at Fort Hood before taking his own life. The shooting was the second deadly rampage at the base, one of the largest U.S. Army posts in the country, in five years. REUTERS/Julia Robinson (UNITED STATES - Tags: MILITARY CRIME OBITUARY)