Abolishes the death penalty and specifies that any person sentenced to death must be sentenced to life imprisonment without parole

HB 2521 abolishes the death penalty for murder in the first degree in Missouri, replacing it with a mandatory life imprisonment sentence without parole. The bill specifically requires courts to sentence individuals convicted of murder in the first degree to life in prison without eligibility for parole, probation, or release except by the governor's action. It applies to all new convictions and requires existing death sentences to be automatically converted to life imprisonment without parole. The legislation repeals all Missouri statutes allowing the death penalty for this offense and updates sentencing classifications accordingly. This change directly affects all individuals convicted of murder in the first degree under Missouri law.