The Sante Fe County Sheriff’s Office Friday released its 551-page report on the investigation into the fatal shooting of a cinematographer on the set of Alec Baldwin’s film “Rust” last year in response to records requests by media organizations.

The report details a chaotic set but does not answer the key question: How did live ammunition get onto the set and into the gun Baldwin was using in rehearsal that day?

The report says that live ammo was found on a cart used by the prop department, in a bandoleer on the cart, and in an ammunition box, Deadline reported.

Baldwin told investigators he was told the gun was safe to handle.  Armorer Hannah Gutierrez-Reed, first assistant director Dave Hall, and Seth Kenney — who supplied much of the guns and ammo used in the movie — all denied responsibility for the live rounds;

Halyna Hutchins was killed and director Joel Souza was wounded when the gun Baldwin was handling went off, as CrimeOnline previously reported. Prosecutors have previously said as many was four people could be prosecuted in the shooting. Baldwin has insisted that he did not pull the trigger.

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[Featured image: Alec Baldwin/AP Photo/Seth Wenig and Halyna Hutchins/Instagram]