898 F.3d 859
8th Cir.2018Background
- Alvin Bernal Jackson was convicted of two capital murders (1990 life sentence; 1996 death sentence) and filed an Atkins claim under Ark. Code Ann. § 5-4-618 seeking a finding of intellectual disability to avoid execution.
- Jackson’s habeas Atkins claim has been litigated repeatedly: district court dismissal (2007), Eighth Circuit remand (2007), summary-judgment dismissal (2009), Eighth Circuit remand for an Atkins hearing (2010), and an evidentiary hearing before the district court.
- At the evidentiary hearing each side presented experts (Dr. Moneypenny for Jackson; Dr. Macvaugh for the State). The district court credited Dr. Macvaugh and found Jackson not intellectually disabled.
- The district court applied the DSM-5 diagnostic framework (published after the hearing) and placed substantial weight on Jackson’s adaptive strengths (many demonstrated in prison) and on co-occurring diagnoses (e.g., antisocial personality disorder, ADHD) to discount an intellectual-disability finding.
- The Eighth Circuit, applying Supreme Court guidance in Moore and Hall, found error: the district court overemphasized adaptive strengths (including prison-developed skills), overweighted other diagnoses against disability, and effectively required a specific causal nexus between IQ deficits and adaptive deficits.
- The panel reversed and remanded for reconsideration under Moore and the DSM-5/medical community guidance, directing the district court to account for IQ standard error of measurement, to evaluate adaptive deficits without demanding specific causation, and to prioritize adaptive deficits over strengths developed in controlled settings.
Issues
| Issue | Plaintiff's Argument | Defendant's Argument | Held |
|---|---|---|---|
| Whether Jackson is intellectually disabled under Ark. Code § 5-4-618/Atkins | Jackson argued the district court misapplied the legal standard and ignored evidence of IQ and adaptive deficits supporting disability | State argued Jackson was not intellectually disabled based on expert testimony that he malingered on recent tests and evidence of adaptive strengths and other psychiatric diagnoses | Reversed: district court clearly erred in finding no intellectual disability because it overemphasized adaptive strengths, relied on prison‑developed skills, and gave undue weight to co‑occurring disorders against disability |
| Whether district court erred by applying DSM‑5 rather than DSM‑IV | Jackson argued he lacked notice and was prejudiced because DSM‑5 was published after the hearing and arguably imposes different requirements | State supported use of DSM‑5 as current medical guidance | Court held it was permissible to apply DSM‑5 (courts must be informed by current medical standards) and found no material difference that would bar its use |
| Whether IQ scores must be adjusted for standard error of measurement (SEM) | Jackson argued childhood IQ scores within SEM of 70 should be treated as indicating possible disability and trigger adaptive-functioning inquiry | State argued Jackson malingered on recent tests and IQ did not demonstrate disability | Court instructed district court to apply SEM (±5) to childhood scores and consider whether lower range falls at or below 70 per Moore/Hall, then evaluate adaptive functioning |
| Whether plaintiff must show specific causal link between IQ deficits and adaptive deficits | Jackson argued he need only show adaptive deficits related to intellectual functioning, not prove specific causation or exclude other contributing disorders | State relied on expert testimony that adaptive deficits might stem from other disorders, not intellectual disability | Court held Jackson is not required to prove specific causation or to rule out contributing causes; adaptive deficits related to intellectual functioning suffice (avoid overreliance on other diagnoses) |
Key Cases Cited
- Atkins v. Virginia, 536 U.S. 304 (Eighth Amendment prohibits execution of intellectually disabled offenders)
- Moore v. Texas, 137 S. Ct. 1039 (Supreme Court guidance on applying clinical standards and avoiding lay folklore in Atkins analyses)
- Hall v. Florida, 134 S. Ct. 1986 (IQ measurement error and requirement to consider SEM and adaptive evidence)
- Sasser v. Hobbs, 735 F.3d 833 (8th Cir. 2013) (Arkansas statute construed concurrent with Atkins; SEM and adaptive-function framework)
- Tennard v. Dretke, 542 U.S. 274 (mitigating nature of impaired intellectual functioning; no nexus requirement between crime and disability)
- Ortiz v. United States, 664 F.3d 1151 (remand appropriate where prejudice from error cannot be ruled harmless)