AZ SB1037

Eliminates the "life imprisonment" sentencing option for first degree murder, leaving only death or natural life imprisonment as sentencing outcomes when the state seeks the death penalty

Removes eligibility for commutation, parole, and release for defendants convicted of serious offenses who have two or more prior serious offense convictions, requiring natural life imprisonment without possibility of release after 25 years

Expands prosecution's ability during the penalty phase to present evidence against leniency, including defendant's character, criminal record, and other acts, regardless of whether the defendant presents mitigation evidence

Applies natural life sentences (no eligibility for release on any basis) to repeat violent or aggravated felony offenders, eliminating previous provisions allowing commutation eligibility after 35 years

Requires the Supreme Court to impose natural life sentences when death penalty errors are found and mitigation is deemed sufficient to warrant leniency