Atkins v. Virginia
The Supreme Court ruled that executing people with mental retardation violates the Eighth Amendment's ban on cruel and unusual punishment, overturning its own 13-year-old precedent allowing such executions.
The Court pointed to a swelling number of state laws banning these executions as evidence that American society had reached a new consensus that people with significantly impaired reasoning and judgment are less morally blameworthy and should not face the death penalty.
How it got here: A Virginia jury sentenced Atkins to death twice; the Virginia Supreme Court affirmed, rejecting his claim that his mental retardation barred execution under the Court's Penry precedent.
The Case in Depth
What happened
Daryl Renard Atkins was convicted of abducting, robbing, and murdering Eric Nesbitt, an airman, after forcing him to withdraw cash from an ATM and then shooting him eight times. At sentencing, a psychologist testified Atkins had an IQ of 59 and was mildly mentally retarded, while the state's expert disputed the diagnosis. A jury sentenced Atkins to death.
The question before the Court
Does executing a person with mental retardation count as cruel and unusual punishment banned by the Eighth Amendment?
The Court's answer
Yes — the Court ruled that executing people with mental retardation is unconstitutional under the Eighth Amendment's ban on cruel and unusual punishment. It found that a growing number of states had banned the practice since the Court's 1989 decision allowing it, and treated that trend as strong evidence of a new national consensus against such executions.
Beyond counting state laws, the Court used its own independent judgment: because impaired reasoning, judgment, and impulse control make people with mental retardation less morally culpable, executing them serves neither of the death penalty's recognized purposes — retribution and deterrence — and their impairments also increase the risk of wrongful conviction or execution. The Court left it to the states to develop procedures for determining who actually qualifies as having mental retardation.
Curious how the Court got there? See the step-by-step legal reasoning →
Why it matters
Death row inmates with intellectual disabilities across the country can now challenge their sentences, and prosecutors nationwide can no longer seek the death penalty for defendants found to have mental retardation. States must develop procedures for determining who qualifies, a process that would generate significant litigation for years afterward.
What changes now
The Virginia Supreme Court's judgment is reversed, and the case is sent back for further proceedings consistent with the ruling, meaning Atkins cannot be executed unless a court first determines he does not actually have mental retardation. The decision leaves it to individual states to create their own procedures for determining who qualifies as mentally retarded for this purpose, which produced substantial follow-on litigation in the years after this ruling.
What this does not decide
The Court left it to the states to define exactly who qualifies as having mental retardation and how that determination should be made, meaning the ruling itself does not establish a single national test or resolve disputes about specific individuals' diagnoses, including Atkins's own case.
Concurrences and dissents
Dissent — Justice Rehnquist
Chief Justice Rehnquist argued the majority's claimed national consensus was a post hoc rationalization, since many states still allowed these executions. He separately objected to the Court's reliance on foreign law, professional and religious organizations' views, and opinion polls, arguing only legislative enactments and jury sentencing practices are legitimate objective indicators of society's standards, and that the polling data cited was methodologically unreliable.
Dissent — Justice Scalia
“Seldom has an opinion of this Court rested so obviously upon nothing but the personal views of its Members.”Scalia's central objection that the ruling reflects the Justices' own preferences rather than a real national consensus.
Justice Scalia argued the Court's finding of a 'national consensus' was fabricated, since only 18 of 38 death-penalty states banned the practice and even those laws were new and often not fully retroactive. He contended the Constitution's original meaning does not support the ruling, that culpability should be assessed case-by-case by sentencing juries rather than through a categorical rule, and warned the decision invites defendants to feign mental retardation.
How the Court got there
The legal reasoning, step by step
- The Court applies a proportionality principle under the Eighth Amendment, judged by 'evolving standards of decency' rather than by the standards of 1791, meaning the punishment must be measured against what society currently views as acceptable.
- The clearest evidence of those evolving standards is legislation: the Court counted the number of states that had banned executing people with mental retardation since its 1989 decision in Penry v. Lynaugh (the earlier case that found no such national consensus existed at the time), noting that many states had since passed such bans and none had reversed course.
- Because such laws were being adopted quickly and unanimously by legislatures that voted them in, and because states without such bans rarely carried out these executions in practice, the Court concluded a national consensus had emerged against the practice.
- Turning to its own independent judgment, the Court found that the two traditional purposes of the death penalty -- retribution and deterrence -- were not meaningfully served by executing people whose impairments in reasoning, judgment, and impulse control make them less culpable than an average offender.
- The Court also reasoned that these same impairments raise the risk of wrongful conviction or execution, since such defendants are often poor witnesses, less able to assist their own counsel, and more vulnerable to having their disability wrongly used against them as evidence of future dangerousness.
- Combining the legislative consensus with its own judgment that execution does not serve retribution or deterrence for this group, the Court held that the practice is now excessive and therefore prohibited.
Doctrinal impact
Cases affected by this decision
Overrules Penry v. Lynaugh (492 U. S. 302)
The Court reversed its 1989 holding that no national consensus barred executing people with mental retardation.