How does the live ammo play into your assessment?
The armorer or assistant who handed Baldwin a gun and declared it was unloaded, is clearly negligent as the gun was NOT unloaded. The rehearsal called for aiming the gun at the camera operator.
Somebody was negligent for not having a bullet-resistant ballistic shield protecting the camera operator while a firearm was beign pointed at them, as is standard industry practice. I don't know who was responsible for that detal.
It was negligent for Baldwin not to check for himself that the gun was empty and had no round in the chambers, before aiming the gun at a person. Instead of insuring fiream safety for himself, Baldwin relied solely on the bad judgment of the armoror or assistant who handed him the loaded weapon and told him it was "cold".
There were many unsafe practices that I don't think rise to the level of negligence. They should not have had live ammo on set. They should not have been shooting target practice with live ammo on set. If they were stupidly going to shoot target practice on a movie set, at the very least they should have been using clearly identifiable guns that would never be used in the movie under any circumstances, so an "accident" could not happen. I don't consider any of these poor practices to be "negligent", just stupid. They contributed to the death but did not cause the death.
The negligent practices that caused the lady's death were the armoror or assistant handing a loaded gun to the actor, the actor failing to clear the weapon to insure it was unloaded, and the failure of somebody to have a ballistic shield in place to protect the crew.
In no way, shape, or form was this an "accident" as the very generous Medical Examiner has gifted the rich and popular celebrity actor and the armorer or assistant in their hope to avoid criminal prosecution. An "accident' would be dropping the gun on the ground and it misfiring, or tripping over a stool causing the weapon to fire as you fell to the round, or a broken hammer spur that caused the hammer not to stay back when cocked.
Handing a loaded gun to a person who doesn't bother to check it's loaded before aiming it at someoby and squeezing the trigger is not an accident. It is purely negligence.