A man who shot and wounded an Arizona state trooper Thursday along a remote highway and then started slamming the helpless officer's head into the pavement as the two struggled was shot to death by passing driver, authorities said. "My trooper would not be alive without his assistance," DPS Director Frank Milstead said of the driver who stopped. It was not unusual that the passing driver was armed in this gun-friendly state with loose regulations. Authorities believe the man who shot Andersson was driving the car that crashed. That's when the passing driver showed up and asked if the trooper needed help.

Source: Fox News January 13, 2017 01:07 UTC