Do you really believe that a person in a car (the cop) could put a person outside the car in a headlock? A person of Brown’s stature?
http://www.freerepublic.com/focus/news/3192122/posts?page=11#11
I can see it — pushing the door open into the kid and then as the cop is getting out of the vehicle reaching through the window and grabbing him by the neck and then pulling his head toward him as he wrapped it in a headlock before the kid is able to push his way out of the headlock to get away.