Shot him 6 times? The fuck? Lock this guy up for life, straight up murdered an unarmed kid.
Another thing I learned rather quickly while briefly volunteering for emergency services is that shooting a pistol in a high pressure situation is instantaneous. Cops don't have time to think, they find a reason to shoot, and shoot. They aren't counting how many shots they're taking, they just shoot until they think the person is down.
My uncle encountered a guy walking the neighborhood with pistol. He was looking for suicide by cop. My uncle was first on scene. He tried to talk the guy down. The guy didn't listen and pulled for his gun. By the time the gun was out of his pocket and ready to fire, my uncle fired three shots. He missed two and hit the guy's hand on his last shot. The entire sequence took less than a second. They were only feet away.
My point is, a lot of times people get caught up with how many rounds were fired, but they don't realize that the cops aren't counting. The cops are firing until either their adrenaline or magazine is empty.
I'm not sure if that's applicable in this case since it seems like the cop had some time to think, but I thought that this point would offer some insight.
With that said, my uncle recently encountered the man he shot at a recent domestic disturbance. The man didn't say a word to him. Although my uncle remarked that the man did look like he was doing better mentally.
Also doing this from mobile. Pardon for the grammar.