898 F.3d 1314
11th Cir.2018Background
- In 1996 Marion Wilson Jr. and Robert Butts killed Donovan Parks; Wilson was convicted of malice murder and other offenses and sentenced to death. Trial counsel presented residual doubt mitigation and limited background evidence through Wilson’s mother and Dr. Renee Kohanski (forensic psychiatrist).
- Trial counsel possessed social, school, and medical records that contained additional potential mitigation leads but did not investigate or present many of them; counsel focused on residual doubt and blamed unclear delegation of mitigation investigation among trial team.
- In state habeas proceedings Wilson presented extensive new lay and expert mitigation evidence (teachers, family, social workers; neuropsychologist Dr. Jorge Herrera; and corroborating testimony from Dr. Kohanski) showing neglect, possible frontal-lobe impairment, and abuse.
- The superior court denied relief, finding counsel’s performance non‑deficient or, alternatively, that Wilson suffered no prejudice because much of the new evidence was cumulative, speculative, or would have been impeached; the Georgia Supreme Court denied review without opinion.
- After initial federal appellate proceedings, the U.S. Supreme Court instructed courts to “look through” an unexplained state‑court affirmance to the last reasoned decision (Wilson v. Sellers). On remand, the Eleventh Circuit applied the superior court’s reasoning and affirmed the denial of federal habeas relief, concluding Wilson failed to show prejudice from counsel’s alleged failure to investigate.
Issues
| Issue | Plaintiff's Argument | Defendant's Argument | Held |
|---|---|---|---|
| Whether federal court should "look through" an unexplained state‑court affirmance | Wilson: courts should review the last reasoned state decision for AEDPA deference | State: the unexplained summary denial should govern or not be limited to lower court reasoning | Court: Followed Wilson v. Sellers — looked through to the superior court’s reasoned decision and presumed adoption by the state supreme court |
| Whether trial counsel were constitutionally ineffective for failing to investigate and present mitigation | Wilson: counsel failed to investigate records and interview available witnesses; additional lay and expert evidence would have created reasonable probability of different sentence | State/Warden: counsel made strategic choice to pursue residual doubt; much of the new evidence was cumulative or would be impeached | Court: Counsel’s failure did not establish prejudice under Strickland because new evidence was largely cumulative or weak and would not likely change outcome |
| Whether the new expert neuropsychological evidence showed prejudice | Wilson: Dr. Herrera’s testing showed frontal‑lobe impairment and impaired judgment supporting mitigation | Warden: expert methods were nonstandard, speculative, and contradicted other record evidence of leadership and gang role | Court: Expert evidence was unreliable, speculative, and conflicted with aggravating evidence; did not create reasonable probability of different result |
| Whether to remand or expand certificate of appealability for further claims | Wilson: additional ineffective‑assistance claims warranted remand/expanded COA | Warden: no substantial showing of constitutional denial for additional claims | Court: Denied remand and refused to expand COA; original briefing sufficed and Wilson failed to make the requisite showing |
Key Cases Cited
- Strickland v. Washington, 466 U.S. 668 (established two‑part ineffective‑assistance standard: deficient performance and prejudice)
- Wiggins v. Smith, 539 U.S. 510 (counsel’s duty to investigate mitigation and prejudice analysis)
- Porter v. McCollum, 558 U.S. 30 (consider totality of mitigation and reweigh against aggravation)
- Williams v. Taylor, 529 U.S. 362 (habeas review and importance of cumulative mitigation evidence)
- Harrington v. Richter, 562 U.S. 86 (deference under AEDPA to reasonable state‑court determinations)
- Wilson v. Sellers, 138 S. Ct. 1188 (federal courts must "look through" unexplained state‑court affirmances to last reasoned decision)
- Wong v. Belmontes, 558 U.S. 15 (cumulative and admissible impeachment evidence principles in mitigation context)
- Holsey v. Warden, Ga. Diagnostic Prison, 694 F.3d 1230 (mitigation evidence may be largely cumulative and insufficient to establish prejudice)