In Kennedy v. Louisiana, decided in 2008, the U.S. Supreme Court held 5–4 that the Eighth Amendment forbids imposing the death penalty for any crime against an individual person unless that crime results in the victim’s death. The decision struck down a Louisiana law that had sent Patrick Kennedy to death row for the rape of a child, and it invalidated similar statutes in several other states. The ruling still controls today, but it is not quiet law: Florida enacted a statute in 2023 designed to force the Supreme Court to revisit it.
The Case Behind the Ruling
Patrick Kennedy was charged in Louisiana in 1998 with the aggravated rape of his eight-year-old stepdaughter. State law authorized capital punishment for the rape of a child under twelve, and the district attorney chose to seek death.1Louisiana State Legislature. Louisiana Revised Statutes 14:42 – First Degree Rape A jury convicted Kennedy and unanimously returned a death sentence.2Legal Information Institute. Kennedy v Louisiana
Kennedy argued the sentence violated the Eighth Amendment’s ban on cruel and unusual punishment. The Louisiana Supreme Court disagreed, reasoning that children are a class in need of special protection and that no crime short of first-degree murder is more deserving of death than the rape of a child.2Legal Information Institute. Kennedy v Louisiana The question then went to the U.S. Supreme Court.
The constitutional question was one the Court had circled but never squarely answered. In Coker v. Georgia (1977), a plurality had struck down the death penalty for the rape of an adult woman as grossly disproportionate, but the opinion pointedly addressed only adult victims and noted that Florida, Mississippi, and Tennessee already authorized execution for the rape of a child.3Justia U.S. Supreme Court Center. Coker v Georgia, 433 US 584 (1977) Whether the Constitution permitted the death penalty for child rape stayed open for more than thirty years. Louisiana’s statute forced the answer.
What the Court Decided
Justice Anthony Kennedy wrote for a five-Justice majority that included Justices Stevens, Souter, Ginsburg, and Breyer.4Justia U.S. Supreme Court Center. Kennedy v Louisiana, 554 US 407 (2008) The Court held that the Constitution bars the death penalty for the rape of a child where the crime neither resulted in nor was intended to result in the victim’s death. The opinion followed a two-part Eighth Amendment framework: look first to objective indicators of society’s standards, then apply the Court’s own judgment about whether the punishment fits the crime.
Evolving Standards of Decency
On the first prong, the majority counted heads. Of the thirty-seven jurisdictions that authorized capital punishment, only six allowed it for child rape. In forty-five jurisdictions, Kennedy could not have been sentenced to death for this offense at all.2Legal Information Institute. Kennedy v Louisiana No one in the United States had been executed for a non-homicide crime since 1964. The Court read those numbers as evidence of a national consensus against extending capital punishment to offenses that do not take a life.
Proportionality and the Court’s Own Judgment
On the second prong, the majority acknowledged the devastating harm child rape inflicts, but concluded that non-homicide crimes “cannot be compared to murder in their severity and irrevocability.” Because death is irreversible and uniquely severe, the Constitution confines it to a narrow category of the most serious offenses. The majority added that “evolving standards of decency are difficult to reconcile with a regime that seeks to expand the death penalty to an area where standards to confine its use are indefinite and obscure.”4Justia U.S. Supreme Court Center. Kennedy v Louisiana, 554 US 407 (2008)
The Dissent
Justice Alito wrote the dissent, joined by Chief Justice Roberts and Justices Scalia and Thomas. Their central objection was that the majority’s headcount misread the evidence. In Alito’s view, Coker had cast such a long shadow that legislators who might have supported death-penalty statutes for child rape were deterred by the near-certainty that courts would strike them down. Legislative inaction under those conditions revealed what lawmakers expected judges to do, not what they believed was right. Five states had in fact enacted targeted child-rape capital statutes in the years leading up to the decision, and others had pending legislation, which the dissent read as momentum in the opposite direction from the consensus the majority claimed.4Justia U.S. Supreme Court Center. Kennedy v Louisiana, 554 US 407 (2008)
The dissent also faulted the majority for substituting judicial moral judgment for legislative choice. Alito argued the Eighth Amendment should leave room for states to make their own proportionality judgments about the most severe crimes.
The Military Law Error
The opinion contained a significant factual mistake that surfaced almost immediately. The majority had said that no federal law authorized the death penalty for child rape. In fact, Congress had done exactly that two years earlier. The National Defense Authorization Act of 2006 amended the Uniform Code of Military Justice to authorize capital punishment for the rape of a child. The Senate passed the bill 95–0 and the House 374–41. President Bush then issued an executive order in 2007 expressly reauthorizing the death penalty for child rape under military law.5Legal Information Institute. Kennedy v Louisiana – Statement Respecting Denial of Rehearing
Louisiana petitioned for rehearing on the ground that this federal enactment cut against the national consensus the majority had described. The Court denied rehearing but issued an amended opinion acknowledging the military statute. The majority concluded the military justice system operates under different standards and purposes than civilian criminal law, and so the statute did not disturb the ruling. Justice Scalia, joined by the Chief Justice, wrote separately to say the denial was wrong, arguing that an act of Congress passed by overwhelming bipartisan majorities was strong evidence against the very consensus the Court had claimed to identify.7Legal Information Institute. Kennedy v Louisiana – Statement Respecting Denial of Rehearing
What the Ruling Covers and What It Doesn’t
The holding functions as a bright-line rule for crimes against individuals: no death sentence unless the crime results in the victim’s death. That rule invalidated Louisiana’s statute along with similar provisions in Georgia, Montana, Oklahoma, South Carolina, and Texas.6Justia U.S. Supreme Court Center. Kennedy v Louisiana, 554 US 407 (2008)
The Court explicitly carved out an exception for crimes against the state itself. Treason, espionage, drug trafficking by a kingpin, and terrorism threaten the community as a whole rather than an individual victim, and the majority signaled those offenses might justify a different proportionality analysis. Several states continue to maintain statutes authorizing capital punishment for offenses like treason and aircraft hijacking.
Is Kennedy v. Louisiana Still Good Law?
It remains binding precedent, but its future is genuinely uncertain. In 2023, Florida enacted House Bill 1297, which amended the state’s capital felonies statute to authorize the death penalty for aggravated sexual battery of a child under twelve even when the victim survives. The law was drafted as a direct challenge to the 2008 ruling. As of early 2026, Florida is seeking to have the U.S. Supreme Court revisit the decision, betting that the current Court’s composition may produce a different result.
Whether the Justices agree to hear that challenge is not yet known. If they do, and if the Court is persuaded that the political ground has shifted since 2008, Kennedy v. Louisiana could be narrowed or overturned, reopening the door for states to impose capital punishment for the most serious non-homicide offenses against children.