The cop couldn't CATCH the kid. Was he supposed to run around the field for a half hour, hoping the kid would eventually get tired?
Sorry....i don't feel sorry for the kid, and i don't blame the cop one bit for what he did. He ended the problem the quickest, safest way he could.
And again, no one knew for sure what exactly this kid intended to do. What if he pulls a knife and stabs a player?
You can't KNOW for sure what anyone intends to do when they break the law. And in the end, that's what he did. He KNEW he was breaking the law, and CHOSE to do it. What happened to him afterwards is his own fault.