Brian Dorsey v. David Vandergriff, 30 F.4th 752

Background

In Dec. 2006 Brian Dorsey raped his cousin Sarah Bonnie, murdered her and her husband Ben, stole property, and later confessed after turning himself in; he pleaded guilty and the State sought death.
At sentencing defense counsel (experienced in capital cases) did not investigate or present evidence of Dorsey’s adjustment to incarceration, instead arguing the crimes were an aberration and emphasizing his good character.
The jury found seven aggravating factors and returned death sentences; Missouri courts affirmed on direct appeal. Dorsey’s state postconviction counsel did not raise an ineffective-assistance claim about failure to investigate prison-adjustment evidence.
Dorsey filed a federal habeas petition under 28 U.S.C. § 2254 raising that ineffective-assistance claim among others; the district court held the claim procedurally defaulted and insubstantial under Martinez v. Ryan.
A COA was granted on whether the claim is “substantial” under Martinez; the Eighth Circuit reviewed whether Martinez’s standard equates to Miller‑El’s COA standard and whether Strickland’s performance and prejudice prongs could be met.
The Eighth Circuit affirmed: it treated Martinez’s substantiality inquiry as equivalent to a debatable (Miller‑El) standard but concluded the ineffective‑assistance claim was insubstantial because counsel’s strategy was reasonable and no prejudice was shown given the horrific crimes and seven aggravating findings.

Issues

Issue	Plaintiff's Argument	Defendant's Argument	Held
Whether Martinez’s “some merit” (substantiality) standard equals Miller‑El’s COA standard	Dorsey: "some merit" means reasonable jurists could debate whether trial counsel was ineffective (i.e., Miller‑El standard)	State: Martinez’s substantiality is a different, narrower standard; Ward/Dansby support that view	Court: Agreed Martinez ≈ Miller‑El (debatable among jurists), but error below was harmless because claim is insubstantial on the merits
Whether trial counsel’s failure to investigate/present incarceration‑adjustment evidence was deficient (Strickland performance)	Dorsey: Counsel should have investigated and presented Skipper‑type jail adjustment evidence	State: Strategic mitigation choice to portray the crime as an aberration was reasonable given the nature of the crimes	Held: No reasonable jurist could find counsel’s performance debatable; strategic choice to avoid potentially counterproductive evidence was reasonable
Whether counsel’s failure was prejudicial (Strickland prejudice)	Dorsey: Evidence of good prison adjustment could have swayed jury toward life	State: Seven statutory aggravators and the crimes’ heinousness make a different outcome implausible	Held: No reasonable jurist could find prejudice debatable; evidence would not likely have overcome aggravators or changed outcome
Whether district court erred in excluding late affidavits about prison behavior	Dorsey: Affidavits from investigator and psychologist show good adjustment and should be considered	State: Affidavits are largely hearsay, untimely, and district judge has discretion to reject	Held: Even if exclusion was error, it was harmless—affidavits would not make the claim substantial

Key Cases Cited

Martinez v. Ryan, 566 U.S. 1 (2012) (postconviction counsel’s ineffectiveness can excuse procedural default for substantial IATC claims)
Miller‑El v. Cockrell, 537 U.S. 322 (2003) (COA requires that reasonable jurists could debate the district court’s disposition)
Strickland v. Washington, 466 U.S. 668 (1984) (two‑prong ineffective assistance standard: performance and prejudice)
Harrington v. Richter, 562 U.S. 86 (2011) (deference to reasonable strategic choices and explanation of Strickland prejudice standard)
Skipper v. South Carolina, 476 U.S. 1 (1986) (evidence of good behavior in jail is admissible mitigation)
Williams v. Taylor, 529 U.S. 362 (2000) (counsel’s substantial failure to investigate mitigation can satisfy Strickland in extreme cases)
Deck v. Jennings, 978 F.3d 578 (8th Cir. 2020) (discusses reasonableness of mitigation strategy regarding incarceration evidence)
Taylor v. Steele, 6 F.4th 796 (8th Cir. 2021) (interprets Martinez’s “some merit” as debatable among jurists)
Ward v. Hobbs, 738 F.3d 915 (8th Cir. 2013) (earlier Eighth Circuit decision cited on Martinez standard)
Dansby v. Hobbs, 766 F.3d 809 (8th Cir. 2014) (acknowledged but did not resolve whether Martinez equals Miller‑El)