I was asking about Who has worked on a movie set, because there are plenty of opinions about how things happened and Who is responsible. Not many that align with what I have observed on working on Movie sets (20+ times in the last few years, as a standby paramedic for stunts).
My observations-
1. Actors do not question whether props are good to go, or not. They depend on staff to provide them with proper equipment, properly set up.
2. Actors are focused on delivering their lines, and Acting. Crew are forbidden from interacting with them while the cameras are being set up, or rolling (of course). No crew is allowed to look into the Actor's eyes (even from 50 ft away) while the camera is rolling (doing so distracts the Actor). Crew should not talk with the Actor on set, as the Actor may be focused on their jobs, just like you should be focused on yours.
3. AD's (Assistant Directors) come in all levels of expertise. On shooting day, the 1st AD (there are usually 4) is a very busy person. They DEPEND on everyone doing their job, professionally. If a Stunt Coordinator says that the rigging is safe, the AD does not question it, unless something is obvious.
4. Sets are very much a scenario where Do Your Own Job is a guiding principle. I have been told to stand down when I wanted to help a crew member move some heavy equipment (think Camera Equipment), because it is not my job. By helping, I'm inferring that they can't do their job.
5. I've only been on a few sets with firearms, but on those sets, there is ALWAYS someone at the table with the firearms, and NO ONE is allowed to touch them, except the Armorer.
The investigation will uncover the chain of events that led to this tragedy, and I'll be watching as much as anybody to hear what they uncover. Kind of like hearing what the NTSB has to say after an aircraft accident.
Alec Baldwin may be held partially responsible, but speculation about his requirement to inspect the firearm before the camera rolls is incorrect, in my mind. It just triggers me. (see what I did there?)