SANTA FE, United States (AFP)— Lawyers blamed Alec Baldwin for the fatal shooting on the set of Western film “Rust” in opening statements Thursday, as they defended the movie’s armorer from prosecutors’ allegations she was “unprofessional and sloppy.”

Cinematographer Halyna Hutchins died from her injuries after being hit by a live round fired from a gun Baldwin was holding during a rehearsal in New Mexico in 2021.

Baldwin, the lead actor and a producer on “Rust,” is awaiting his own manslaughter trial at the same Santa Fe court. He has pleaded not guilty and insisted he did not pull the trigger, saying that as an actor, he should have been able to rely on the professionals around him.

But the Hollywood A-lister was at the heart of arguments made by the defense for armorer Hannah Gutierrez, who was responsible for weapons on set and is the first person to go on trial over the tragedy.

“Mr Baldwin, one of the lead producers, head actor on the movie — he really controlled the set. You’re going to hear that he violated some of the most basic gun safety rules you can ever learn,” said defense lawyer Jason Bowles.

“He violated all of those. It wasn’t Miss Gutierrez-Reed. It was Mr Baldwin.”

Gutierrez, also known as Hannah Gutierrez-Reed, has denied involuntary manslaughter.

The prosecution opened its case by portraying Gutierrez as consistently “unprofessional and sloppy.”

Prosecutor Jason Lewis alleged Gutierrez failed to properly check Baldwin’s gun, frequently rushed or skipped safety procedures, and routinely left guns and ammo unattended on set.

A crime scene technician said real bullets had been found loose alongside fake rounds atop a “prop cart,” and tucked into holsters used by actors including Baldwin.

“The evidence will show that the defendant treated the safety protocols as if they were optional, rather than that people’s lives counted on her doing her job correctly,” said Lewis.

Introducing their first witnesses — two police officers — prosecutors showed graphic footage taken from their bodycams of some of Hutchins’ final moments, as she lay barely moving on the floor of the movie set’s chapel, being treated by medics.

By her side director Joel Souza, who was also shot but survived, is heard in the video groaning in severe pain, while a silent Hutchins is carried out and loaded into an ambulance.

A second video showed Gutierrez panicking and repeating “Oh my God,” “Sorry” and “Are they OK?” as she hands the gun to police, before being asked to wait alone in a police car, where she begins hyperventilating.

Attending court Thursday, Gutierrez — dressed in a dark gray suit jacket and pants, and with her formerly bright purple-and-green hair now a natural brown — looked composed as she watched the video, and did not speak.

One of the key questions surrounding the death of Hutchins is how a live bullet found its way onto set and into Baldwin’s gun.

Prosecutors displayed a photo of Gutierrez that they said showed a live round in a case resting on her lap more than a week before the incident.

“This means that the live ammunition could not have been… supplied by somebody other than Miss Gutierrez,” said Lewis.

But defense lawyer Bowles disputed the evidence, arguing it is not possible to distinguish a live round from a dummy round purely on the evidence of photos.

The trial is the latest attempt to hold someone accountable for an on-set tragedy that shocked Hollywood and led to calls for a tightening of rules around the use of firearms in movies.