IF he reached before the shot, I'd call it justified.
You just don't grab for anything in a situation like this.
Sent from my HAL 9000
No argument from me, my point was zinc saying he was "reaching into an area where he had a gun" and "going for an area WHERE YOU HAVE A PISTOL", something the officers had no way to know at the time. Personally I wouldn't have reached for a damn thing but you can't say he was reaching for a pistol until you know he had a pistol, facts are facts, stating it in that fashion is trying to bias the listener.
We don't really know why he was reaching, to retrieve a weapon or... doesn't matter really, bad move.