SANTA FE, N.M. (AP) — Court records state that Alec Baldwin fatally shot a cinematographer on a New Mexico film set with a gun a crew member had assured the actor didn't carry live rounds.

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The tragic mistake came hours after some workers walked off the job to protest conditions and production issues.

Court records say that an assistant director grabbed a prop gun off a cart at a desert movie ranch and handed it to Baldwin during a Thursday rehearsal for the Western film “Rust.”

When Baldwin pulled the trigger, he unwittingly killed 42-year-old cinematographer Halyna Hutchins and wounded director Joel Souza.

A 911 call from the scene hints at the panic on the movie set.

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