Was it me or did the cop try and force him to violate his 5th amendment right from the start of the conversation? "Tell me what you did wrong?"
May have been intentional, after all if you admit what you did, they could use that in court, or the cop might have just been dumbfounded that this moron didn't know what he did. The kid started out OK, but quickly went full retard. I thought the cops handled it pretty well.