"When Jared Lee Loughner went to the Sportsman's Warehouse outlet on Nov. 30, he faced few obstacles to walking away with a Glock 19 semiautomatic handgun. Loughner was making the purchase in Arizona, a state with an Old West culture where gun laws are among the most lenient in the United States. The 22-year-old passed an instant background check required under federal law for all gun buyers, said Reese Widmer, manager of the Tucson store. A law enacted last year allowed Loughner to conceal and carry the pistol without a permit. On Sunday, Loughner was charged with using the Glock in the Tucson rampage that gravely wounded Rep. Gabrielle Giffords (D-Ariz.) and killed six others, including a federal judge and a 9-year-old girl. In all, 20 people were shot in the attack."