Modifies provisions relating to the sentencing of persons under nineteen years of age

This bill modifies sentencing for individuals convicted of murder who were under 19 at the time of the offense. It allows them to petition for parole review after 25 years (and again after 35 years) of incarceration, replacing life without parole sentences. Parole boards must consider rehabilitation efforts, maturity, accountability, and institutional conduct during reviews. Judges must also weigh youth-specific factors like development, background, and rehabilitation potential when sentencing minors convicted of murder.