Five people were shot dead Tuesday by a gunman who then killed himself at an aircraft parts plant near Meridian, Mississippi. Eight other people were injured by the man armed with a shotgun and a semiautomatic rifle, Lauderdale County official said. They have been taken to local hospitals and some were in a critical condition. The gunman -- an employee at the plant -- was shooting randomly rather than targeting individual workers. No motive for the shooting was immediately known and the gunman's name has not been released.