Per the officer there was a struggle for the gun in his front seat where one bullet was fired.
I believe it was the Chief who gave an interview and said that the investigation was that the suspect shoved the officer into the car and tried to get his weapon. There was a struggle and one shot was fired.
The officer was in a fight for his life.
But Hey!! ...let's go trash & rob the Quickie-Mart and Lik'a Store.