Authorities said Giffords, 40, was targeted at a public gathering by a man with a semiautomatic weapon around 10 a.m. Saturday outside a busy Tucson supermarket. Arizona's chief federal judge and five others were killed and 14 people were injured, including the Democrat lawmaker.[...]"He was definitely on a mission," according to event volunteer Alex Villeca, former Giffords intern.Police say the shooter was in custody, and was identified by people familiar with the investigation as Jared Loughner, 22. U.S. officials who provided his name to the AP spoke on condition of anonymity because they were not authorized to release it publicly.His motivation was not immediately known, but Dupnik described him as mentally unstable and possibly acting with an accomplice.His office said a man possibly associated with the suspect who was near the scene was being sought. The man, who was photographed by a security camera, was described as white with dark hair and 40-45 years old.
Authorities are searching for a place known only as "the black lodge."