A man traveling to California came to the rescue of a wounded state trooper who was struggling with the gunman who had shot him on an isolated stretch of Interstate 10, authorities said.
The man, who was with his wife, stopped his car when he came upon a rollover accident and saw the struggle, according to Col. Frank Milstead, Arizona Department of Public Safety director.
The trooper told the man he needed help, and the man returned to his car, got his gun and fired at the assailant when he refused to listen to orders to stop and back away, Milstead said.
Alessandra Luckey 