Federal agents, military investigators and Texas Rangers are investigating whether the gun used in the Fort Hood massacre was purchased at the "Guns Galore" shop in Killeen, Texas, according to the store co-manager. They called last night and asked about a specific name and gun purchase, but the name was not Hasan," said the manager who gave only his first name, Dave. He said he did not want to reveal the name for fear it would compromise the investigation. Three investigators, including one wearing a Texas Rangers badge, were seen entering the store just before noon Friday. The manager said...