Can Minors Get the Death Penalty? The Ruling and Sentencing Limits

No. In the United States, minors cannot get the death penalty. The Supreme Court ruled in 2005 that executing anyone who was under 18 at the time of the crime violates the Eighth Amendment’s ban on cruel and unusual punishment. The rule applies to every state and to federal prosecutions, and it turns on the offender’s age when the crime was committed, not their age at trial or sentencing.

The Supreme Court Ruling That Ended the Practice

The constitutional ban comes from Roper v. Simmons, decided 5–4 in 2005. Justice Anthony Kennedy wrote the majority opinion, holding that the Eighth and Fourteenth Amendments forbid imposing the death penalty on anyone who was under 18 when their crime was committed.1Justia U.S. Supreme Court Center. Roper v. Simmons, 543 U.S. 551 (2005)

The case involved Christopher Simmons, who planned and carried out a murder in Missouri at age 17. Because the ruling rests on the Eighth Amendment, it binds every state and the federal government equally.

Roper overturned the Court’s own 1989 decision in Stanford v. Kentucky, which had allowed states to execute offenders who were 16 or 17 at the time of their crime. The Stanford Court found no national consensus against the practice and left the question to individual states.2Congress.gov. Constitution Annotated – Amdt8.4.9.8 Minors and Death Penalty Sixteen years later, the Roper majority concluded that consensus had shifted. When the decision came down, 30 states already prohibited juvenile executions, and even in the 20 states that allowed them, the practice was rare.3Cornell Law School Legal Information Institute. Roper v. Simmons

Why the Line Is Drawn at 18

The Court gave two reasons for treating juveniles differently under the Eighth Amendment.

The first was the “evolving standards of decency” framework. A growing number of states had banned the practice, prosecutors and juries almost never pursued it where it remained legal, and the Court pointed to what it called overwhelming international opinion against executing juvenile offenders.

The second was developmental. The Court identified three ways juveniles are less culpable than adults. They lack mature judgment and are more likely to act impulsively without weighing consequences. They are more susceptible to outside pressure, especially from peers. And their character is still forming, so a juvenile’s crime is less likely to reflect a fixed personality than an adult’s would.1Justia U.S. Supreme Court Center. Roper v. Simmons, 543 U.S. 551 (2005) Medical and psychological groups filing briefs in the case explained the underlying science: parts of the adolescent brain responsible for impulse control and risk assessment continue developing well past 18. Those biological realities, the Court said, made juveniles categorically less deserving of the harshest punishment and more capable of change.

Which Age the Law Counts

The rule turns on the offender’s age at the moment of the offense. Not the arrest. Not the trial. Not the sentencing. Someone who committed a capital crime at 17 and turned 18 before their trial is still ineligible for the death penalty.2Congress.gov. Constitution Annotated – Amdt8.4.9.8 Minors and Death Penalty That was Simmons’s own situation: he committed the murder at 17 and was sentenced to death after turning 18. The rule is absolute and applies no matter how many years pass between the offense and the final judgment.

The Harshest Sentence a Juvenile Offender Can Face

With execution off the table, the most severe punishment for a juvenile offender is life in prison. The Court has issued a string of decisions since Roper putting limits on that sentence too.

No Life Without Parole for Non-Homicide Crimes

In Graham v. Florida (2010), the Court held that sentencing a juvenile to life without the possibility of parole for a non-homicide offense violates the Eighth Amendment.4Justia U.S. Supreme Court Center. Graham v. Florida, 560 U.S. 48 (2010) A state does not have to guarantee release, but it must provide what the Court called a “meaningful opportunity” for the offender to demonstrate maturity and rehabilitation.

No Mandatory Life Without Parole for Murder

In Miller v. Alabama (2012), the Court ruled that mandatory life-without-parole sentences for juveniles convicted of murder are unconstitutional.5Justia U.S. Supreme Court Center. Miller v. Alabama, 567 U.S. 460 (2012) The decision did not bar life without parole in every juvenile murder case. It required sentencing courts to hold individualized hearings weighing the offender’s age, maturity, family background, the circumstances of the crime, and the possibility of rehabilitation. The Court said such a sentence should be “uncommon,” reserved for the rare juvenile whose crime reflects “irreparable corruption” rather than the ordinary immaturity of youth.

Miller Applied Retroactively

In Montgomery v. Louisiana (2016), the Court held that Miller‘s rule applies retroactively.6Justia U.S. Supreme Court Center. Montgomery v. Louisiana, 577 U.S. 190 (2016) People serving mandatory life-without-parole sentences from years or decades earlier for crimes committed as juveniles were entitled to relief. States could either resentence them or make them eligible for parole. Hundreds of inmates became eligible for new hearings or parole review as a result.

No Required Finding of Permanent Incorrigibility

The most recent major decision pulled back from the trajectory of the earlier ones. In Jones v. Mississippi (2021), a 6–3 majority ruled that a sentencing judge does not need to make a specific factual finding that a juvenile is “permanently incorrigible” before imposing life without parole.7Justia U.S. Supreme Court Center. Jones v. Mississippi, 593 U.S. ___ (2021) The Court said Miller requires only that the sentencing system give the judge discretion to consider youth as a mitigating factor. In practice, a judge can now impose life without parole on a juvenile murderer after an individualized hearing, without expressly finding the offender beyond rehabilitation.

Where the Law Stands Now

The death penalty ban for juvenile offenders is settled. No serious legal challenge to Roper exists, and it has held for two decades. When the ruling came down, more than 70 juvenile offenders sat on death row across 12 states, and it took them all off death row immediately, though most continued to serve long prison sentences.1Justia U.S. Supreme Court Center. Roper v. Simmons, 543 U.S. 551 (2005)

The active legal debate has moved to life-without-parole sentences. A majority of states and the District of Columbia have either banned juvenile life without parole outright or limited how it can be used, and in several other states no one is currently serving such a sentence even though the statute technically allows it. After Jones, the federal constitutional floor is relatively modest: states must give judges discretion to consider youth, and not much more. The push to go further is happening in state legislatures. On the underlying question, though, the answer has been fixed since 2005: no one in the United States can be sentenced to death for a crime committed as a minor.