In Blueford, the defendant was being tried for capital murder. The trial judge instructed the jury that if it did not find the defendant guilty of capital murder, it should consider the lesser included offense of first degree murder. The court further instructed that if the jury did not find the defendant guilty of first degree murder, it should consider manslaughter…and so on and so forth. After several hours of deliberations, the jury reported that it could not reach a unanimous verdict. The judge inquired into how the voting was going and the jury reported that it had decided that the defendant was not guilty of capital murder or first degree murder, but that it could not agree on manslaughter. The judge instructed the jury to go back and keep trying, but they were unable to break the impasse. Accordingly, the trial judge declared a mistrial.
During the retrial for the same offense, the defendant objected on double jeopardy grounds to the charge of capital murder, arguing that the jury’s informal verdict that he was not guilty of capital or first degree murder precluded him being retried for that same charge at a later trial. The trial court disagreed, as did the appellate courts.
In a 6-3 opinion (Majority: Roberts, Scalia, Kennedy, Thomas, Breyer, Alito), the Supreme Court held that :
The Double Jeopardy Clause does not bar retrying Blueford on charges of capital murder and first-degree murder. The jury did not acquit Blueford of capital or first-degree murder. Blueford contends that the foreperson’s report that the jury was unanimous against guilt on the murder offenses represented a resolution of some or all of the elements of those offenses in his favor. But the report was not a final resolution of anything. When the foreperson told the court how the jury had voted on each offense, the jury’s deliberations had not yet concluded. The jurors in fact went back to the jury room to deliberate further, and nothing in the court’s instructions prohibited them from reconsidering their votes on capital and first-degree murder as deliberations continued. The foreperson’s report prior to the end of deliberations therefore lacked the finality necessary to amount to an acquittal on those offenses. That same lack of finality undermines Blueford’s reliance on Green v. United States, 355 U. S. 184, and Price v. Georgia, 398 U. S. 323. In both of those cases, the verdict of the jury was a final decision; here, the report of the foreperson was not.This holding appears to be consistent with Texas law, in that a jury foreperson must sign a verdict form and the court must accept the verdict, before it is given any legal significance.
Justices Sotomayer dissented (joined by Ginsberg and Kagan), and would hold that partial verdicts should be required before a mistrial is granted on the grounds of a deadlock.