Why doesn't it matter?
During the entire chase, he had the gun visible in his right hand.
He tossed it behind the fence and a second later, spun around with his hands up.
He should have dropped it before his stopped running.
Or dropped it so the cop saw it on the ground.
The point is WHEN he was shot, he had his hands up and he was COMPLYING with police commands to show his hands... and got shot anyway.
Yes, after an exhausting chase, the officer was going to take note he got rid of the gun in less than a half-second. I'd love to see how good you would do when it's your life on the line.
Oh, if I were a cop, I'd probably put a beat down on the first fool who mouthed off to me. It's a good thing I decided to do something else for a living.
The point was, this cop should have made sure this CHILD had a gun in his hand before he shot him.
HANDS UP. DON'T SHOOT.
This ain't complicated, buddy.