Bill > HB2259

This bill modifies trial procedures for first-degree murder cases by establishing a two-stage trial process when the death penalty is not waived. In the first stage, the trier of fact (jury or judge) determines only guilt or innocence, without considering punishment. If the defendant is found guilty of first-degree murder, a second stage of the trial focuses solely on determining the punishment. During this stage, evidence in aggravation and mitigation can be presented, and the trier must unanimously decide whether aggravating circumstances outweigh mitigating circumstances. The bill requires life imprisonment without the possibility of parole under specific conditions, such as if the defendant is found to be intellectually disabled, if no statutory aggravating circumstances are proven beyond a reasonable doubt, or if the trier decides not to impose the death penalty. The bill also provides a mechanism for resentencing defendants whose sentences were previously assessed by a judge when a jury could not reach a unanimous decision, mandating life imprisonment without parole. Additionally, the bill defines "intellectual disability" and allows parties to address this issue prior to trial with the court's permission. These provisions apply to offenses committed on or after August 28, 2001.

https://house.mo.gov/Bill.aspx?bill=HB2259&year=2026&code=R