I counted 5 and 5. I think it was justified. You go into a place with a weapon, you're taking the risk for whatever happens. He could have been inside threatening a clerk and had a concealed carrier shoot him. The clerk could have shot him, etc. You got a couple guns on you, with the guys behind the guns screaming at you to get on the ground. You should probably get on the ground. Their adrenaline is pumping, they tried non-lethal weapons, he still made a threatening move. Training kicked in. If he connected with that rod, it could have been lights out for the cop. They want to go home to their families too. You make decisions, you live (or die) with the consequences. Driving drunk , holding up a store, whatever. P.S. ...It is a sad commentary on the way the onlookers were unaffected by watching somebody die.