Hannah Gutierrez, the armorer for the movie "Rust," has been sentenced to 18 months in prison for involuntary manslaughter in the fatal shooting of cinematographer Halyna Hutchins. The incident occurred when actor Alec Baldwin, handling a gun on set, fired a live round instead of a blank. Gutierrez was found guilty of negligence for loading the live round into the revolver. The tragedy, which shocked Hollywood, is believed to be the first time in modern history that a film crew member was killed by a live round.