Supreme Court Weighs Key Death Penalty Case as Debate Over Intellectual Disability Intensifies

The U.S. Supreme Court spent two tense hours Wednesday wrestling with one of the most difficult questions in modern death penalty law: how should courts evaluate borderline cases of intellectual disability when deciding whether a convicted murderer can be executed? The case — originating from Alabama — has drawn national attention and sparked debate from legal experts, disability advocates, and community observers, including people in Auburn, who follow Alabama’s major legal battles closely.

While the justices offered sharp questions, they revealed no clear consensus about how to properly interpret and apply the constitutional protections established in earlier rulings. The outcome, expected by early summer, could reshape the standards used in death penalty appeals and have far-reaching implications for courts across the country.

Background: The Case of Joseph Clifton Smith

The case centers on 55-year-old Joseph Clifton Smith, who has spent roughly half his life on Alabama’s death row. He was convicted of killing Durk Van Dam in Mobile County in 1997, a crime prosecutors say involved a brutal hammer attack and robbery.

But Smith’s attorneys argue that he is intellectually disabled and therefore constitutionally barred from execution under the Supreme Court’s 2002 decision in Atkins v. Virginia, which prohibited executing people with intellectual disabilities.

Smith’s intellectual functioning has long been disputed. Over the course of his life, he took five IQ tests, scoring between 72 and 78 — slightly above the traditional cutoff point of 70. Despite the scores being above the threshold, his attorneys say the numbers alone don’t reflect his real-world limitations. They noted that he was placed in learning-disabled classes early in school, dropped out after the seventh grade, and as an adult functioned academically at roughly an elementary level.

For many Alabama residents — including those in cities such as Auburn, Montgomery, and Mobile — the case raises renewed questions about fairness, disability rights, and the state’s approach to capital punishment.

Supreme Court Precedents and Why This Case Matters

In 2014 and 2017, the Supreme Court made it clear that states cannot rely exclusively on IQ scores when evaluating claims of intellectual disability. Those rulings emphasized that a comprehensive, “holistic” analysis is required because IQ tests carry inherent margins of error.

Smith’s legal team argues that the lower courts followed those directives exactly. The Eleventh Circuit Court of Appeals took a broader look at Smith’s history and adaptive functioning before concluding he met the legal standard for intellectual disability.

But Alabama disagrees, and so do 20 other states that filed briefs supporting the state’s position. They argue the earlier Supreme Court rulings went too far and created uncertainty in capital cases. Alabama insists that because Smith never scored below 70, he cannot meet the legal definition of intellectual disability, regardless of other factors.

This tension — between rigid testing benchmarks and broader clinical assessments — lies at the heart of the justices’ questioning.

Inside the Supreme Court Hearing

During the hearing, several justices appeared divided.

Justices Leaning Toward Alabama

Justice Samuel Alito, joined by Justice Clarence Thomas, voiced strong concern that ruling for Smith would open the door to endless litigation in other capital cases. He warned that adopting a more flexible standard could create “messy court fights” where every issue becomes debatable.

Chief Justice John Roberts also asked pointed questions, signaling hesitation about expanding the scope of non-IQ evidence.

Justices Questioning Alabama’s Rigid Approach

Justice Elena Kagan emphasized that courts must consider additional evidence beyond IQ tests — though she also noted that judges do not have to accept such evidence at face value.

Smith’s attorney, Seth Waxman, urged the Court not to reduce intellectual disability evaluations to test scores alone. He reminded the justices that Smith had been diagnosed with “mental retardation” — the then-accepted term — as early as seventh grade.

Disability rights groups supported Smith with briefs arguing that IQ-only diagnoses are “faulty and invalid,” pointing out that a narrow test-based approach risks excluding people who genuinely cannot function at an adult level.

For many Alabama residents and policy observers — including those watching closely from Auburn and other communities — the oral arguments underscored the broader moral complexity surrounding capital punishment and mental disability.

The Larger Debate: IQ Tests, Adaptability, and the Law

Alabama’s current definition of intellectual disability requires three elements:

1. An IQ of 70 or below

2. Significant deficits in adaptive functioning

3. Onset before age 18

But Smith’s case highlights a recurring problem: what happens when someone repeatedly scores slightly above 70 but displays clear signs of cognitive impairment in daily life?

Lower courts have said Smith meets the criteria when looking holistically at his childhood development, academic performance, and adult functioning. Alabama says the scores should be the deciding factor.

A federal judge in 2021 went so far as to vacate Smith’s death sentence, noting the evidence presented “is a close case” but still pointed toward intellectual disability.

What Comes Next

The Supreme Court’s ruling in Hamm v. Smith will likely arrive by early summer and could set a new national precedent. Depending on how broadly the justices rule, the decision may:

• Strengthen protections for death row inmates with borderline IQ scores

• Narrow the definition of intellectual disability

• Increase the number of appeals in capital cases

• Or give states like Alabama more authority to interpret their own standards

Communities across the state — including in Auburn, where legal outcomes often spark deep discussion — are watching closely. The ruling may affect not only Smith but also many other prisoners who fall into the “gray area” of intellectual disability assessments.

As the nation awaits the Court’s decision, the case stands as a powerful reminder of the complexity of administering justice, especially when a person’s life hangs in the balance.