Well, it was you who posted against a law which allows a person to shoot a unarmed person. That is what I am about. Not being armed does not necessarily negate your right to defend yourself if you feel threatened. And no, the law says what is considered to be a deadly threat. Just a verbal one does not qualify as one. Of course you can be against a stand your ground law if you want.
Ohio for one, does not have it. But even in Ohio this shooter would more than likely be justified by the law to shoot the aggressor as he would have reasonable grounds to feel his life was in danger or he was about to suffer serous bodily harm. Having just been violently shoved to the ground and the attacker is still there standing.
And off topic and as a tip, break up your paragraphs into easier to read, shorter sentences.
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That is what some are missing here. It was not just a simple shove. It was forceful enough for the shooter to fall hard on the ground. The police chief even pointed this fact out in his news briefing.