There must be more to the story if they’re charging the shooter with first degree murder.
Trying to stop the riots before they start?
Mostly that the State of Illinois does not want any claim of "self-defense" to stand. And they will aggressively prosecute a marginal incident to make sure that it doesn't.
I imagine that the driver spoke to the police when he should have clammed up and waited for his lawyer.
Reaching into a car looks like a potentially lethal threat to me. I would vote for an acquittal, based on the information disclosed so far. Yes, that opinion could change.
I have had an angry driver get out of his SUV, open my door, and reach to pull me from my driver seat. I did not shoot him. I was considering how to break his arm against the steering wheel when he backed off. Must have been the ugly face I was making.
I closed the door, locked it, and waited for the red light to change. Then I drove off. Saved me a lot of trouble.
Too bad this driver had a window open. I drive with doors auto-locked, and windows closed these days.