https://nypost.com/2021/10/21/2-injured-during-prop-gun-mishap-on-set-of-alec-baldwin-film-rust/

"Alec Baldwin shoots two people, one fatally, during prop gun mishap on set of film ‘Rust,’ cops say"

"Alec Baldwin fatally shot a cinematographer and injured a director during a tragic accident when a prop gun discharged on the New Mexico movie set of the film “Rust,” authorities said."

I don't know how firearms are handled on set in Hollywood. I presume you don't pull the trigger even playing around? I assumed it would be stunt men/women.

Unless these two victims were providing set direction, but still, why pull the trigger? Doesn't make sense.