When Jared Loughner walked into the Tucson gun store where authorities allege he put down his money for a Glock 19 in November, the store owner sent a request to run Loughner's name through the FBI's database of criminals, fugitives, illegal immigrants and mentally ill to see if Loughner was among them. Loughner had had several run-ins with police for possessing drugs and had been told to leave his community college for erratic behavior. But the arrests never became... (GunPolicy.org)