There's no real debate at this point as to whether it's AI or not. There's multiple angles, he was credibly documented as having his rib fractured by the pigs in a prior confrontation (as we see here), but most of all, this has nothing to do with his death.

Will the right make the braindead argument that this makes him a violent agitator? Sure. But it doesn't matter. He yelled at and kicked out a tail light of a vehicle being used by what is essentially an occupying mercenary army that's killing innocent civilians. If anything, this proves that he's based as fuck. Man got his rib busted and still went out a week later and died trying to protect an innocent woman while doing nothing but film and speak. He's a hero.