A man armed with a high-powered rifle and a handgun killed three black people at a Dollar General store in Jacksonville, Florida last night before shooting himself, in what local police described as a racially motivated crime. "This shooting was racially motivated, and he hated black people," Jacksonville Sheriff T.K. Waters told a press conference. The suspect, whom Mr Waters described as a white male wearing a tactical vest, was not identified. Mr Waters said all three victims - two men and a woman - were black. Mr Waters said authorities believed the shooter acted alone, and that before the...