How can prop guns be deadly? What to know after fatal shooting on Alec Baldwin movie set

The Alec Baldwin-involved fatal shooting of Halyna Hutchins on a New Mexico movie set has reignited talk of prop gun safety, while the film world mourns the death of the 42-year-old cinematographer. Hutchins, who was killed Thursday when Baldwin discharged a prop gun on the set of “Rust,” is not the first person to die from a stand-in firearm. Others, including the son of martial arts legend Bruce Lee, were also killed in prop gun accidents. No charges have been filed following the shooting on the “Rust” set. Joel Souza, the film’s director, was also injured in the incident. What are prop guns...