Porter v. McCollum
The Supreme Court ruled that a Florida death-row inmate's trial lawyer performed so poorly at sentencing that it was unreasonable for state courts to conclude the missing evidence -- about his abusive childhood, brain damage, and harrowing Korean War combat service -- would not have changed his sentence.
The Court reversed a federal appeals court that had sided with Florida, sending the case back so the ineffective-assistance-of-counsel claim can be properly resolved in the inmate's favor.
How it got here: A federal district court granted habeas relief for ineffective counsel; the Eleventh Circuit reversed, finding Florida's rejection of the claim reasonable; Porter sought Supreme Court review.
The Case in Depth
What happened
George Porter, a decorated Korean War veteran, was convicted of murdering his former girlfriend and sentenced to death. His penalty-phase lawyer, appointed just weeks before sentencing, did almost no investigation and presented barely any mitigating evidence. Years later, Porter's postconviction lawyers uncovered extensive evidence of childhood abuse, brain damage, and severe combat trauma that his original counsel had never found or presented to the jury.
The question before the Court
Did Florida courts unreasonably conclude that a death-row veteran's lawyer's failure to present evidence of his combat trauma, abuse, and mental impairment made no difference to his sentence?
Why it matters
The ruling reinforces that defense lawyers in death penalty cases must thoroughly investigate a client's background -- including military service, family history, and mental health -- before sentencing, and that courts must seriously weigh combat trauma and childhood abuse as mitigating evidence rather than discounting it, particularly for veterans.
What changes now
The case is sent back to the lower courts for further proceedings consistent with the Court's finding that Porter's counsel was constitutionally deficient and that this deficiency prejudiced his sentencing. This does not overturn his conviction -- the Court denied the part of the petition challenging that -- but it clears the way for further resentencing proceedings on the ineffective-assistance claim.
What this does not decide
The Court denied the portion of Porter's petition challenging his underlying conviction; only the death sentence, not the guilt determination, is affected. The ruling is also fact-specific to Porter's particular history and does not establish a categorical rule that combat veterans cannot receive death sentences.
How the Court got there
The legal reasoning, step by step
- Under Strickland v. Washington, a defendant claiming ineffective assistance must show both that counsel's performance fell below an objective standard of reasonableness (deficiency) and that there is a reasonable probability the result would have been different absent the errors (prejudice), with habeas relief available only if the state court's rejection of the claim was an unreasonable application of that standard.
- Because the state courts never decided the deficiency question, the Court reviewed it fresh (without deferring to any prior finding) and concluded counsel's investigation -- a single short meeting, no records gathered, no family interviews -- fell far short of the professional norm requiring a thorough background investigation.
- Turning to prejudice, the Court reweighed the mitigating evidence that should have been presented (military trauma, childhood abuse, brain abnormality) against the aggravating factors found at sentencing, noting one aggravating factor had since been struck by the Florida Supreme Court itself.
- The Court found the state courts had either ignored or unreasonably discounted the mitigating evidence, including wrongly treating the veteran's periods of unauthorized absence as undermining rather than confirming the trauma of his combat service.
- Weighing the strengthened mitigation case against the weakened aggravation case, the Court concluded there was a reasonable probability of a different sentence, making the state courts' contrary conclusion an unreasonable application of Strickland.
Doctrinal impact
Cases affected by this decision
Reaffirms Strickland v. Washington (466 U. S. 668)
The Court applies Strickland's two-part deficiency-and-prejudice test to find Porter's counsel constitutionally ineffective.
Reaffirms Wiggins v. Smith (539 U. S. 510)
The Court relies on Wiggins' reasoning that failing to investigate a client's troubled history can be unreasonable and prejudicial.