Axxording yo the video, a “drug charge.”
If the scene of the incident calms down and officers are done celebrating each other’s cartilidge snapping moves, they will begin to smell of fish. They will always “find” a handgun, bag of weed, or a few chunks of crack or meth. If the citizen has no history of anything criminal, they’ll throw the book at him so they have something to bargain with. In other words, “if you don’t go after us, we’ll drop the drug charges”. It’s pretty standard stuff when they get violent.