This isn't even a case of guns being the problem. The car could've simply run the guy down absent of guns. Cars kill more people than guns. Cars pollute more than guns. Outlaw cars, not guns.
It is also really strange that a random drive by shooting would happen in Montana. California? Yeah, they've got tons of gangs armed with guns, but Montana? Sure everyone has a gun there because there are bears, wolves, and cougars all over the state, especially in western Montana.
This
article updates the story.