TUCSON — Law enforcement officials said Friday they have multiple photos of Jared L. Loughner posing with a Glock 9mm gun next to his naked buttocks and dressed in a bright red g-string. The photos were turned over to the police by Walgreens, where Mr. Loughner had taken them to be developed. In some of the photos he is holding the gun by his crotch and in others, presumably shot in a mirror, he is holding the gun next to his buttocks, the police said. It was not yet clear when the photos were taken or whether Mr. Loughner had...