Know I’ve done a bit of rolling around on the ground myself and I do see grappling but its what is termed,”defensive resistance” by Mr. Brooks anyway, he does Not appear to throw any punches, grab hair, bite or cause great harm to the officers, he is resisting arrest in a defensive manner and his sole purpose appears to be to escape.From multiple videos, Mr Brooks is seen tumbling and tussling with both officers on the ground, who were trying to get him to calm down. Punches and arms were flailing. It is called resisting arrest. The shooting officers' bodycam was torn off his shirt and laid on the ground for some time, with audio still available. I would call that harm.
Shirts can be easily torn if you are grappling with someone, btw.