As with the subject shooting, I'll wait until the facts are in to pass judgment. You see, first instincts are often wrong. My first instinct in the Costco shooting was that the officers went after some unfortunate carrier, guns-ablazing. That was wrong. Fortunately, I kept that judgment to myself until I found out it was wrong.
I again will wait to pass judgment until more facts are in. However, it does look bad for the officer. Since the investigators are saying that he is cooperating with their investigation of others, he likely is guilty of some crimes and is trying to mitigate his punishment. However, at the moment, since we don't know, this subject is ripe only for Olympic Conclusion Jumping. I'll leave that to the medalists 'round here.