A U.S. sailor opened fire at a military base in Hawaii Wednesday, killing two people and injuring a third before turning the weapon on himself, officials said. Rear Admiral Robert Chadwich told reporters the shooting occurred at around 2:30 p.m. in the vicinity of the Pearl Harbor Naval Shipyard's Dry Dock 2 where the USS Columbia submarine was undergoing standard maintenance. He said the gunman, who has been tentatively identified ...