An Arizona state trooper who was beaten and shot while responding to a traffic collision on Interstate 10 was attacked by a Mexican man who was responsible for the one-vehicle rollover, authorities said. With Pennelas-Escobar incapacitated, the motorist tended to the wounded trooper but was later drawn back into the dispute when Pennelas-Escobar got up and resumed his assault on Andersson. The motorist then fired a fatal shot at Pennelas-Escobar. The 37-year-old Pennelas-Escobar was in the country illegally, a drug user and was believed to have once worked as a Mexican police officer, Milstead said. The motorist who shot Pennelas-Escobar hasn't spoken out publicly about the shooting.

Source: ABC News January 16, 2017 22:56 UTC