Authorities say another motorist had just shot and killed a man who wounded Trooper Edward Andersson early Thursday on Interstate 10 west of Phoenix. He said he didn't think twice about stopping when the motorist who had shot the attacker flagged him down. State Department of Public Safety officials said the attacker had been on top of Andersson and was pounding the trooper's head on the pavement before the other motorist shot the attacker. Schober had nothing but praise for the motorist who shot the attacker, calling him "good Sam" " short for good Samaritan. The identity of the motorist who shot the attacker was withheld at his request, authorities said.

Source: New Zealand Herald January 13, 2017 20:48 UTC