NEG-A-TIVE!!! He was holding the weapon. It is most certainly his fault for violating every firearm rule there is. I’m quite sure he has been trained.
I don't like Baldwin, but whomever handed him a gun loaded with live ammo instead of blanks is at fault here.
I'm wondering if his famous temper made him try to threaten someone while thinking it was a prop. Fired it to intimidate.
If so it should be jail time for Alex.