The crazed gunman who was  shot dead after trying to enter Mar-a-Lago  with a shotgun and a gas can has been identified as a North Carolina artist who was reported missing by his mom. Austin Tucker Martin, 21, of Cameron, North Carolina, was killed by law enforcement  in the early hours of Sunday morning, law enforcement sources told The Post. He was reported missing by his family to authorities on Saturday. Officials are still investigating whether he bought the gun en route to Florida. Trump