Amtrak officer charged with murder in unarmed man's shooting

CHICAGO -- An Amtrak police officer charged in the shooting death of an unarmed Minneapolis man outside Chicago’s Union Station was ordered held on $250,000 bail Friday.LaRoyce Tankson, 31, is charged in the Feb. 8 shooting of 25-year-old Chad Robertson, who died Wednesday, the Cook County state’s attorney’s office said.Robertson was taking a bus from Memphis, Tennessee, to Minneapolis and was on a stopover in Chicago when the shooting occurred. Robertson and two friends went t