A gunman shot and killed his mother Wednesday on Route 9 in Sabattus before exiting the vehicle, shooting at passing cars and killing another person. He then turned the gun on himself.

The shooter killed his mom while they were driving, shot at passing cars, and then killed himself, police said.

As he was sitting in the passenger seat of a car his mom was driving, a 29-year-old man pulled out a gun and fatally shot her, Maine police said. Then, James Davis III shot at three more random cars passing by on the road, killing one other person and injuring two, Maine State Police said in an April 3 news release.