I guess it depends on the amount of time it takes to pick up and point a gun.
The autopsy will confirm if there was any pot in his system.
So far the only thing which is not disputed is that he did have 2 oz. of pot, he did run from room A to room B, and there was a gun in room B.
What is in dispute is whether he actually had the gun in his hand or was only reaching for it.
I doubt he ever pointed a gun at the police. Go see the 3 minute video from local TV station at the beginning of this thread