I won't respond again.
But the point is that Grant was severely outnumbered and outgunned. It wasn't even a question that he could somehow break free or harm somebody else without being stomped on and gunned down by the large group of heavily armed men who surrounded him. As it happens, he was stomped on and gunned down by a member of that group without even breaking free or doing anything that even remotely approached harming another. And whether he was "resisting" or not, the video conclusively demonstrates that he was sufficiently outnumbered so as to be rendered immobile.