I see two scenarios possible:
#1 - this idiot has no business even touching a gun because he is so mentally defective as to be a danger to the world around him.
#2 - this guy is an idiot who committed murder and then made up a lie to cover himself.
either way - he is responsible for this death.
Every article I’ve seen goes out of their way to excuse him. Those are huge red flags. Check the relatives and/or to whom they contribute.
However did this guy get a firearms permit in Chicago?