I don't know why this sort of event makes people mad. The geezer knew the guns were illegally possessed as the laws have been around for quite some time. So long before the geezer was ever assaulted, he was in violation of the law. He knew that when he carried the weapon for self defense, as he did for cashing his check, that if some event occurred, the gun would be an issue since it was unlicensed. I am sure his reasoning was that he would worry about gun possession laws if he ever had to use the gun to save his own life. He used the gun, it was discovered, and now he faces those charges.
What is the big deal? He knew what he was doing and knew he was in violation of the law. If he didn't like the law, then he should have moved to someplace more gun friendly.
These articles keep coming up time after time and yet people on the forum seem surprised that folks in NY and Chicago who are in illegal possession of guns get charged for the possession as a result of some event where they used the gun.
You rolls your dice and you takes your chances when you possess illegal guns in such places.