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Execution By Accident: Evidentiary And Constitutional Problems With The "Childhood Onset" Requirement In Atkins Claims, Steven Mulroy

Steven Mulroy

The article discusses claims by capital defendants asserting that they are mentally retarded (MR) and thus cannot be executed under the 2002 Supreme Court holding in Atkins v. Virginia. Courts hearing such claims require proof that any intellectual deficits first occurred during childhood. This “childhood onset” prong is problematic for practical and theoretical reasons. As a practical matter, courts often improperly: (a) expect (rarely available) IQ test results dating from childhood; (b) dismiss MR proof if the defendant has minimal day-to-day competence, despite the medical consensus that MR persons can drive, cook, etc.; and (c) reject Atkins claims because the …