Full Breakdown
Supreme Court Weighs Intellectual Disability in Death Penalty Case
12/11/2025, 11:31:05 AM
Background of the Case
The Supreme Court is currently deliberating on the case of Joseph Clifton Smith, an Alabama inmate sentenced to death for the 1997 murder of Durk Van Dam. Smith's conviction has been challenged on the grounds that he is intellectually disabled, which would exempt him from execution under the Eighth Amendment's prohibition of cruel and unusual punishment. The case, Hamm v. Smith, raises critical questions about how courts should evaluate borderline cases of intellectual disability, particularly in light of multiple IQ test scores.
Core Issues at Stake
Smith has taken five IQ tests over nearly four decades, with scores ranging from 72 to 78. Alabama law defines intellectual disability as an IQ of 70 or below, alongside significant deficits in adaptive behavior. The central issue in this case is whether Smith's scores, which are slightly above the threshold, should be considered in conjunction with other evidence of his intellectual functioning. Lower federal courts have ruled that Smith meets the criteria for intellectual disability, taking a holistic approach that includes his educational history and behavioral assessments.
Arguments Presented
During the oral arguments, Alabama's attorney, Robert Overing, contended that Smith's scores above 70 should disqualify him from being considered intellectually disabled. He argued that the lower courts had "changed the rules" by allowing additional evidence to influence the determination of Smith's intellectual capacity. Overing emphasized that the burden of proof lies with Smith to demonstrate his disability.
Conversely, Smith's lawyer, Seth Waxman, argued for a broader interpretation of intellectual disability that considers all relevant evidence, including adaptive functioning and educational history. He pointed out that Smith had been diagnosed with mental retardation in seventh grade and had consistently performed below grade level in school.
Judicial Perspectives
The justices expressed confusion over Alabama's arguments, with several questioning the rationale behind relying solely on IQ scores. Justice Sonia Sotomayor highlighted that Alabama's own expert had acknowledged Smith's lower scores and adaptive deficits. Chief Justice John Roberts and Justice Brett Kavanaugh also raised concerns about the implications of a rigid interpretation of IQ scores, suggesting that it could lead to unjust outcomes for individuals with borderline intellectual functioning.
Implications of the Ruling
The Supreme Court's decision in Hamm v. Smith could have far-reaching consequences for death row inmates across the United States. A ruling in favor of Smith may set a precedent that allows for a more nuanced evaluation of intellectual disability, potentially affecting up to 20% of the 2,100 individuals currently on death row who may have some degree of intellectual disability.
Official Statements & Responses
Alabama Attorney General Steve Marshall stated, "Joseph Smith is not intellectually disabled, and the Eighth Amendment does not override the death sentence he earned for murdering Durk Van Dam." Meanwhile, rights groups have argued that "intellectual disability diagnoses based solely on IQ test scores are faulty and invalid," advocating for a more comprehensive assessment of intellectual functioning.
What's Next
The Supreme Court is expected to issue its ruling by late June 2026. The outcome will not only determine Smith's fate but could also reshape the legal landscape regarding how states assess intellectual disability in capital cases, influencing future appeals and the standards applied across various jurisdictions.
