My brother and father were 6'4" -225+lbs and could kill a grown man with their fists, which makes the threat to Wilson much more credible. My father knocked me out cold with a glancing left hook and my brother about tore my head off with an open hand. It's like getting hit with a large bat from a man that size. The Grand Jury will have basically one thing to discern, did the officer believe his life was endangered at the time of the shoot. If they can't conclude that he was definitely NOT in danger, then they shouldn't be able to indict.