Arizona trooper shot in ambush attack; Good Samaritan kills gunman
When the trooper began working to block lanes, a suspect came from an unknown direction and "ambushed" him, according to DPS.
The suspect shot him at least once in the chest-shoulder area and fought the trooper to the ground.
A passerby saw the fight unfolding and stopped to render aid to the trooper, who asked for help.
However, the suspect ignored the Good Samaritan's orders to stop attacking the trooper.
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