This undated photo released by the U.S. Army shows Pfc. Naser Abdo. Abdo, 21, arrested Wednesday, July 27, 2011, who had weapons stashed in a motel room near Fort Hood, Texas, admitted planning an attack on the post, where 13 people died in 2009 in the worst mass shooting ever on a U.S. military installation, the Army said in an alert issued Thursday. (AP Photo/U.S. Army)
May 25, 2012 8:05:40 AM PDT
WACO, Texas (AP) - May 25, 2012 --
Walking around a gun store one day last summer, the young man never took off his sunglasses as he asked questions about items he piled on the counter - behavior that struck the manager as odd.