He didnt fill out his incident report but that is routine in a shooting incident which might be problematic. He would be advised to speak to an attorney before making any statements about what happened.
He has spoken to the investigators already and they have his story on videotape.
I agree. In fact, don't be surprised if his attorney or an attorney for the department showed up to the crime scene. i don't know who is representing him, but I do know that it is not unusual in other municipalities for the attorney to respond to officer involved shootings along with everyone else.