'Rust' electrician posts last known photo of Halyna Hutchins in chapel where Alec Baldwin fired fatal shot

• "Rust" crew member Serge Svetnoy shared the last photograph of Halyna Hutchins on set.
• Hutchins was killed on October 21 by a prop gun fired by the actor Alec Baldwin.

Serge Svetnoy, the chief electrician on the movie "Rust," has shared what he has described as the last known photograph of cinematographer Halyna Hutchins taken before she was killed by a prop gun fired by the actor Alec Baldwin on set.

The photograph which Svetnoy shared on Facebook last week shows Hutchins on the set of "Rust" observing production along with the caption: "The last photo with Halyna on set."

It is not clear whether the photograph was taken directly before Hutchins was killed by the prop gun discharged by Baldwin, but the image appears to show the chapel on set where authorities have said the fatal shooting took place.

There are currently three ongoing investigations into the death of cinematographer Halyna Hutchins. In a new affidavit obtained by Insider, Joel Souza, the director "Rust," who was also injured by the prop gun discharged by Alec Baldwin said the actor had been rehearsing for a scene when he fatally shot Hutchins.

The affidavit also said that Baldwin got the gun from assistant director Dave Halls, who had said "cold gun" - industry lingo that refers to a gun that is not loaded with any ammunition.

Earlier this week, Svetnoy also shared an extensive and emotional message about the shooting and revealed that he held a dying Halyna Hutchins after she was shot on set.

"I was holding her in my arms while she was dying," Svetnoy wrote. "Her blood was on my hands."

Svetnoy also said he was nearby when the gun fired: "Yes, I was standing shoulder-to-shoulder with Halyna during this fatal shot that took her life and injured the director Joel Souza."

He continued to describe the professional challenges that he believes contributed to Hutchins's death.

"It's the fault of negligence and unprofessionalism," he wrote. "The negligence from the person who was supposed to check the weapon on the site did not do this; the person who had to announce that the loaded gun was on the site did not do this; the person who should have checked this weapon before bringing it to the set did not do it. And the death of the human is the result."