Man slaughter is the unintentional killing of a human being, especially through negligence.
Baldwin was negligent in that he did not check the weapon in his possession was safe.
He repeatedly refused to attend firearm safety class.
Baldwin fits the dictionary definition of Man Slaughter or Negligent homicide.
You decide.
“Baldwin was negligent in that he did not check the weapon”
Except that was explicitly not his job. On a film set firearm safety is the legal responsibility of the armorer.
Consider this example:
* You buy a bottle of aspirin from CVS
* You give one to a friend
* It turns out CVS had sold you cyanide!
* Your friend dies
CVS has 100% of the legal responsibility in this case.