 A key witness could soon testify in actor Alec Baldwin's manslaughter trial in New Mexico. Hannah Gutierrez-Reed, the armorer in charge of the movie set Rust, could be called to the witness stand today. She was convicted of involuntary manslaughter in April and sentenced to 18 months in prison for the 2021 shooting death of the film's cinematographer, Helena Hutchins. Prosecutors say Baldwin acted negligently when he pointed a gun on set and pulled the trigger.