Ok, I said I was going to give up, but I’ve decided to inform you of a few details you missed since you refused to watch the video.

the guy giving the orders on the video of the shooting is not the same guy that actually fired the shots. The guy giving the orders was the sergeant of the guy that fired the shots.
They had no idea if there was or was not a third person in the room that had not yet come out.
long rifle(the witness that called the cops thought they had a long rifle) rounds can penetrate and go through walls like those found in hotels.