That's terrible grouping.  You are definitely not a shooter if you think that is a good grouping.  22 rounds missed their target from close range.  They weren't a hundred yards away.  Oh and btw, the officer that was hit, was hit by his own police force.  As the shooter, if he actually shot since they never recovered his bullet, nor did they hear a shot, they saw a flash, was shooting straight towards the other officers and not up through the floor.  As a someone who shoots in competitions, this was terrible shooting, and these officers need to train more. Glad none of them was seriously hurt.