The officer had no reason to open fire on a private citizen. How would it go for one of us if we walked into a neighbors yard, then shot at him?
The officer was chasing a perp. When Mr. Turley approached him with a firearm, the officer fired at him. The rock-and-hard-place situation for the officer is that he did not identify himself and he incorrectly identified the homeowner as the perp he was pursuing.
In the moment, the officer obviously reacted to the gun and not to the person carrying it. He may have feared for his life and that will be taken into consideration in the investigation. I am hopeful for a swift and complete recovery but I also believe the officer was entirely wrong in this situation.