McElrath v. Georgia
The Supreme Court unanimously ruled that a jury's 'not guilty by reason of insanity' verdict is a final acquittal under the Constitution, and Georgia cannot retry a defendant on that charge simply because a court decided the verdict was legally inconsistent with other verdicts the jury returned.
The decision reinforces a bedrock constitutional guarantee: once a jury acquits a defendant — for any reason, and no matter how puzzling — the government may not get a second attempt at conviction.
“We simply cannot know why the jury in McElrath's case acted as it did, and the Double Jeopardy Clause forbids us to guess.”
The Court explaining why courts cannot probe a jury's reasons for acquitting, even when specific findings seem to reveal an inconsistency.
How it got here: A Georgia trial court accepted the split verdicts and then, after the state supreme court vacated them as legally inconsistent, rejected McElrath's double jeopardy argument; the Georgia Supreme Court affirmed, and the U.S. Supreme Court agreed to hear the case.
The Case in Depth
What happened
Damian McElrath, who had a history of severe mental illness including schizophrenia, stabbed his adoptive mother to death in 2012 at age 18 while, he claimed, in the grip of delusions. Georgia charged him with malice murder, felony murder, and aggravated assault. At trial, McElrath admitted the killing but argued he was legally insane. The jury returned split verdicts: not guilty by reason of insanity on malice murder, but guilty but mentally ill on the other two charges — verdicts that Georgia's courts found legally irreconcilable.
The question before the Court
Can a state retry a defendant on a murder charge after a jury found him "not guilty by reason of insanity," when a court later declared that verdict legally inconsistent with the jury's other verdicts in the same case?
The Court's answer
No — the Constitution bars Georgia from retrying McElrath on the malice-murder charge. A jury's verdict of "not guilty by reason of insanity" is an acquittal for double jeopardy purposes because it reflects the jury's conclusion that the prosecution failed to prove the defendant's criminal responsibility. Under the Double Jeopardy Clause, a verdict of acquittal is final and cannot be undone by a court — regardless of whether it seems inconsistent with other verdicts.
Georgia argued that because its own law deemed the split verdicts legally incompatible (and therefore void), no acquittal ever legally occurred. The Court rejected this, holding that whether an acquittal happened is a question of federal constitutional law, not state law. A state court cannot nullify a federal constitutional protection by relabeling a jury's "not guilty" finding as legally defective. The jury acted on the question of McElrath's guilt, and the Double Jeopardy Clause forbids second-guessing that judgment.
Curious how the Court got there? See the step-by-step legal reasoning →
Why it matters
Defendants who receive a "not guilty by reason of insanity" verdict on any criminal charge are now shielded from retrial on that charge, even when it conflicts with verdicts on related charges in the same case. States cannot use their own procedural rules about inconsistent verdicts to override this federal constitutional protection and give prosecutors another bite at conviction.
What changes now
The case goes back to Georgia's courts, which must honor the double jeopardy bar and may not retry McElrath for malice murder. On remand, Georgia's courts may separately address — as a matter of state law — the status of the vacated felony-murder conviction, which the Court explicitly left open. McElrath remains subject to whatever proceedings the Georgia courts order on those remaining charges.
What this does not decide
The Court expressly did not decide whether double jeopardy protects a "not guilty" verdict that a trial judge refuses to accept and sends back to the jury for further deliberation. It also did not address whether the Constitution requires courts to accept inconsistent verdicts in the first place — only that, once accepted, an acquittal is final.
Concurrences and dissents
Concurrence — Justice Alito
Justice Alito joined the Court's opinion but wrote separately to narrow his understanding of the holding. He emphasized that in this case the trial judge actually accepted and entered judgment on the acquittal, making the constitutional bar clear. He stressed that the decision says nothing about whether a trial judge who refuses to accept inconsistent verdicts and sends the jury back to deliberate further would face the same double jeopardy constraint — and that courts have never held the Constitution requires accepting inconsistent verdicts.
How the Court got there
The legal reasoning, step by step
- The Double Jeopardy Clause of the Fifth Amendment — which says no person may be tried twice for the same offense — protects defendants from retrial once an acquittal has occurred. The threshold question here was whether the jury's 'not guilty by reason of insanity' verdict on the malice-murder count qualified as an acquittal under that Clause.
- The Court defined 'acquittal' broadly under federal law: any ruling finding that the prosecution's proof was insufficient to establish criminal liability for an offense. Importantly, labels do not control — a state cannot defeat double jeopardy protection simply by calling a ruling something other than an acquittal. Substance governs, not nomenclature.
- Georgia argued that because its repugnancy doctrine — a state rule voiding verdicts that rest on logically irreconcilable findings — rendered all of McElrath's verdicts legal nullities, no valid acquittal ever existed. The Court held that this characterization is irrelevant: whether an acquittal occurred for double jeopardy purposes is a question of federal law, and a state's labeling of a ruling is not binding on the Court.
- Looking at substance, the jury's 'not guilty by reason of insanity' verdict unambiguously found that the State had not proven McElrath's criminal responsibility for malice murder — which is precisely what an acquittal means. Georgia itself conceded the verdict would have been a valid acquittal if McElrath had been tried on only that one count, which confirmed the substance of the ruling.
- Georgia next argued that the bar on second-guessing an acquittal applies only to general verdicts, where courts have no window into the jury's reasoning. Because the jury here made specific findings that revealed an irreconcilable contradiction, Georgia claimed courts could legitimately review and nullify the acquittal. The Court rejected this, holding that once an acquittal has occurred, no amount of specific factual findings can justify a court in speculating about why the jury acted as it did — to do so would invade the jury's deliberations and strip defendants of a core constitutional protection.