The trial of the armorer on the film “Rust,” convicted of involuntary manslaughter for a fatal shooting, provides insights into the case against Alec Baldwin, who faces similar charges. The trial highlighted evidence regarding Baldwin's handling of firearms and his conduct on the set. While some evidence may support Baldwin's defense, such as being told the gun was safe and his communication with the victim, other aspects, like his impatience during a shooting scene, could undermine his case. The conviction of the armorer could impact Baldwin's trial, as it raises questions about shared responsibility for the tragedy.