Authorities investigating hit-and-run death

Authorities are investigating the death of a 22-year-old Marine who was killed in a hit-and-run accident in Arlington.

Maddison Peterson, who was a private first class assigned to the presidential guard unit and stationed at the Marine Barracks Washington, got into an argument on Nov. 8 at a Crystal City hotel bar and decided to leave to calm himself, Arlington police said. That was the last time Peterson was seen alive.