[saying he cocked the revolver but never pulled the trigger]
As someone said, he could have slip-fired the weapon
He also co-wrote "Rust"...a story about a young man who accidently kills someone and is on the run.
And his father...who he was close to...taught Riflery. To excuse him in any way as being "gun stupid" is ridiculous.
“As someone said, he could have slip-fired the weapon.”
Not relevant. Even if the impossible happened (gun fired itself) he still committed involuntary manslaughter. Since Bruce Lee Son died Hollywood recommended several safety rules. No real gun shall be pointed at another person. Watch closely any modern day movie it is all done with movie magic. The closes they are supposed to point a gun is near line of fire and any actor who is required to stand near the line of fire should be allowed to witness the loading of the firearms.
These are strong recommendations though technically not enforced. But knowing this and carelessness is grounds for at least manslaughter.
Slip fire pistols have to have the trigger tied back to make it a slip fire. If that trigger was not tied back then the trigger had to be pulled to make it fire.
Blame should be placed on the armorer who allowed a live round in the firearm, And Baldwin who should not even have pointed it at someone and pulled the trigger.
I am reminded of John Erik Hexum who took while fooling around on the set, took a blank loaded firearm, put it to his head, and pulled the trigger killing himself with a blank loaded firearm.