567 U.S. 460 (2012) (Supreme Court of the United States)
Miller v. Alabama marks a major milestone in the Supreme Court's Eighth Amendment jurisprudence on juvenile punishment.
Does the Eighth Amendment's prohibition on cruel and unusual punishments forbid a sentencing scheme that mandates life without parole for juvenile offenders convicted of homicide?
The Eighth Amendment prohibits mandatory life-without-parole sentences for offenders who were under 18 at the time of their crimes. Before imposing the harshest term, a sentencer must conduct an individualized sentencing process that considers the mitigating qualities of youth and its attendant circumstances (including immaturity, impetuosity, family and home environment, the circumstances of the offense and the offender's role, exposure to peer pressure, and capacity for change). Although juvenile LWOP is not categorically barred in homicide cases, it is permissible only after such individualized consideration and is expected to be uncommon.
Yes. Mandatory life without parole for juvenile homicide offenders violates the Eighth Amendment. States must provide individualized sentencing that allows consideration of youth-related mitigation before imposing LWOP.
Miller is a cornerstone of juvenile sentencing law. It requires courts to move beyond offense labels and consider who the juvenile is and why the crime happened before imposing LWOP. For law students, it illustrates the Court's evolving proportionality doctrine under the Eighth Amendment, the importation of capital-sentencing individualized consideration to other extreme punishments, and the constitutional recognition that adolescents have diminished culpability and heightened potential for reform. Practically, Miller triggered widespread resentencing and legislative reform, later made retroactive in Montgomery v. Louisiana. Jones v. Mississippi clarified that while the sentencer must have discretion to consider youth, no separate finding of permanent incorrigibility is required. Miller thus sits at the center of a doctrinal arc shaping juvenile justice, statutory design, and sentencing procedures nationwide.