That was never being argued.
It absolutely would be a reasonable reaction under the cir stances of that shooting. Stop trying to remove all context from the situation.
Kyle heard a gunshot, was attacked, and fired on his attacker. He went to police instead of waiting around because it was a riot and he just heard a gunshot. Stop trying to act like behaving like a sitting duck was the most appropriate course of action in this situation.
Guilty people don't shout,, "I'm going to the police," and then go to the police..
If that person is running TO the police line, don't attack him. Common sense.