How much jail time could Alec Baldwin face for involuntary manslaughter?

A grand jury has indicted Alec Baldwin on involuntary manslaughter charges in the shooting on the "Rust" movie set. The first charge of involuntary manslaughter handed down by a grand jury alleges Baldwin caused the death of Halyna Hutchins "in the commission of negligent use of a firearm.">>> Trial of Alec Baldwin: How to watch live coverage of the trialThe alternative charge of involuntary manslaughter alleges Baldwin caused the death of Hutchins "by an act committed with the total disregard or indifference for the safety of others, and the act was such that an ordinary person would anticipate that death might occur under the circumstances."According to the indictment, the involuntary manslaughter charge is a fourth-degree felony. A fourth-degree felony in New Mexico carries a sentence of 18 months in prison and can include a $5,000 fine.