I believe AD claims he told her to check what was in the gun. That's how they found four dummy rounds and a casing from a live round that killed the cinematographer.I keep meaning to ask: Why did HG remove the casing from the gun after the shooting? It seems like everything, including guns and ammo, should have been left untouched for LE to inspect. Is there a legitimate reason for handling the gun? Could there have been additional bullets in the gun?
The Armorer (Hannah Gutierrez) was given the prop gun after it was fired by Actor Alec Baldwin, she then took the spent casing out of the prop-gun. When deputies arrived on scene, the prop-gun was handed to arriving deputies by Armorer (Hannah Gutierrez).
‘Rust’: Released Affidavit Reveals Details About Fatal Shooting – Read It – Deadline
https://deadline.com/wp-content/uploads/2021/10/rust-oct-27-search-warrant_Redacted.pdf