It looks like whoever was running the camera was also covering up for them. At the moment that the kid is taken to the ground, the camera pans back to show a broad view of traffic with only faint detail of the arrest. Zooming back in once things looked safe again, the camera still captured enough detail of abusive behavior to where the cop should have been fired.
“It looks like whoever was running the camera was also covering up for them.”
You may be right. I’m surprised that the tape didn’t disappear or “malfunction”. Perhaps someone watching was appalled enough to come forward. The fact remains that there is a cover up in progress protecting the indefensible actions of these officers. They behaved worse than street thugs.