We know Baldwin pulled the trigger. Where the gun was pointed was his responsibility. He was not only the actor, he was the producer. He was the boss.Do we know all the facts yet? Marvin said Baldwin was in a shot where he was to shoot at the camera. I'm not saying that is true either, because I'm not sure they have released all the details. If you have some insider info that you are privy to and can share, have at it. If what Marvin says is the case, he knew exactly where it was pointed.
Again, I'm not a gun expert, or a legal expert, or a gun law expert, but I think we are all on the same level of knowledge of the details of this situation. We are all equally ignorant.
I doubt he should face criminal charges, but that depends on the investigation. Smugly saying we need to know more before commenting is a cop out. Baldwin fired the gun, that is undisputed. That carries responsibility only applicable to him.