So a 17yo kid comes from a different state, carrying a long gun, a killing machine, he is seen and photographed that evening with a group of similarly dressed and armed persons, later to borrow your words shoots with a head shot one "attacker" then drops another "attacker" in a manner that would make a trained Marine proud. Wonder why he was even there, and wonder where he learned to defend himself with such precision. I guess the deer in Illinois are pretty vicious.
Kenosha is less than 10 minute drive from Illinois border. So this "different state" nonsense is silly. That's like saying what is a person from Arlington doing in DC? As for why he was there, that is simple- he was there because he is a goofy libertarian idealist. He was photographed cleaning up graffiti during the day and he was interviewed at night and said he was there to protect people and property from the destruction seen the night before. As for his skill in defending himself, I think a lot of it comes down to video games. Generation Z was raised on first person shooters. Clearly, the discipline and focus learned being a Gamer carries over in to real life. This kid isn't even in good shape. He must have been physically exhausted on top of everything else but still kept his cool and executed.