Roper v. Simmons
Headline: Decision bars execution of offenders who committed crimes under age 18, overturning prior practice and making life imprisonment the required severe sentence for juvenile murderers in most states.
Holding: The Eighth and Fourteenth Amendments prohibit imposing the death penalty on offenders who were under 18 when they committed their crimes; such juvenile offenders are ineligible for execution.
- Makes people under 18 ineligible for execution nationwide.
- Requires states to use life imprisonment, not death, for juvenile murderers.
- Spares current death-row inmates convicted under age 18 from execution.
Summary
Background
Christopher Simmons was 17 when he helped break into a home, bind a woman, and throw her from a bridge, killing her. Tried as an adult after turning 18, he was convicted and sentenced to death. After later court proceedings and changes in law and practice, the Missouri Supreme Court set aside his death sentence and resentenced him to life without parole, and the United States Supreme Court reviewed the question.
Reasoning
The Justices asked whether executing someone for a crime committed before age 18 violates the Constitution’s ban on cruel and unusual punishments. The Court reviewed objective evidence: the number of States that bar juvenile executions (including States that have abolished the death penalty), the rarity of such executions where they remain authorized, international agreements rejecting juvenile execution, and research about adolescents’ immaturity, susceptibility to influence, and unsettled character. The majority concluded juveniles are categorically less culpable and less likely to be deterred, so the death penalty is disproportionate for offenders under 18.
Real world impact
The ruling forbids the death penalty for any offender who was under 18 when the crime was committed. States that previously sought death for juvenile offenders must instead impose severe prison terms, such as life without parole. The decision overrules earlier precedent that allowed some executions of 16- and 17-year-olds and will affect current death-row inmates convicted for crimes committed as juveniles.
Dissents or concurrances
Justice Stevens (joined by Ginsburg) concurred, emphasizing evolving standards of decency. Justice O’Connor dissented, arguing objective consensus was unclear and legislatures should decide. Justice Scalia dissented strongly against using foreign law.
Opinions in this case:
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