The Supreme Court says a federal appeals court went too far in second-guessing a New York murder conviction.

The Supreme Court just reversed a federal appeals court that had ordered a new trial for Pedro Hernandez, the man convicted of killing six year old Etan Patz in 1979. In a 6 to 3 decision issued June 22, 2026, the Court ruled that no clearly established Supreme Court precedent required the trial judge to instruct Hernandez’s jury the way the appeals court demanded, so the appeals court had no legal basis to order habeas corpus relief (a process for challenging an unlawful conviction or sentence). New York wins. Hernandez’s conviction stands.

One unusual thing about this case: the Court decided it without ever holding oral arguments. It’s what’s called a summary reversal, where the justices grant review and rule on the case in the same breath because they think a lower court’s error is clear enough not to need full briefing and argument. The opinion itself isn’t signed by any individual justice. It’s issued “per curiam,” meaning by the Court as a whole.

Here’s the background. Hernandez worked at a store that Patz visited the morning he vanished. In 2012, Hernandez, who has a low IQ and a history of mental illness, confessed to police, first before he was read his Miranda rights (the warning that a suspect has the right to stay silent and to a lawyer) and then again on video after receiving those warnings and waiving them. He confessed several more times after that, to family members and to psychiatrists. A New York jury convicted him of kidnapping and felony murder. During deliberations, the jury sent the judge a note asking whether it had to disregard the later confessions if it found the very first one, made before any warning, to have been involuntary. The judge answered no. Hernandez argued that answer was legally wrong, and eventually took the fight to federal court.

A federal appeals court, the Second Circuit, agreed with him and ordered a new trial. It leaned on Missouri v. Seibert (2004), a case about when a judge must throw out a confession obtained through a police tactic of questioning a suspect first, giving the Miranda warning second, and then asking the suspect to repeat the confession. The appeals court reasoned that the trial judge’s brief answer to the jury misapplied that precedent and denied Hernandez due process.

The Supreme Court disagreed, for a few connected reasons. First, a federal law called AEDPA (the Antiterrorism and Effective Death Penalty Act of 1996) sharply limits when federal courts can step in and overturn a state conviction. A federal court can only grant relief if a state court’s decision contradicted, or unreasonably applied, a rule the Supreme Court itself has clearly established, not a rule that a lower federal court infers or extends on its own. Second, Seibert was about what a judge decides when ruling on whether a confession can be used as evidence at trial. It said nothing about what a jury must be told, and the Court had never before extended it to jury instructions. Third, the Constitution doesn’t require a jury to independently re-evaluate a confession’s legality once a judge has already ruled it admissible. That’s a role some states choose to give juries, but federal law doesn’t require it. Finally, a New York state appellate court had already ruled that the trial judge’s answer was correct under state law, and federal habeas courts generally can’t second-guess state courts on questions of state law.

Justices Sotomayor, Kagan, and Jackson noted that they would have denied the case outright rather than deciding it immediately. The Court’s order doesn’t include a written explanation of their reasoning, so there isn’t more to say about the disagreement than that it happened.

It’s worth being precise about what the Court did and didn’t decide. It held that no clearly established Supreme Court rule required this specific jury instruction, not that Hernandez’s confessions were reliable or that his trial was handled perfectly. The Court also left an underlying legal puzzle unresolved: which opinion in Seibert actually counts as controlling law, the four-justice plurality opinion or Justice Kennedy’s separate opinion. Federal appeals courts are split on that question (the Second Circuit says one thing, the Sixth Circuit says another), and this case didn’t settle it.

In practice, this decision doesn’t create a sweeping new rule so much as reinforce an existing one. AEDPA already set a high bar for federal courts trying to overturn state convictions, and this ruling applies that bar here rather than loosening or tightening it. For anyone thinking about how the criminal justice system handles confessions, especially from someone vulnerable, like a person with a low IQ or a mental illness, this case is a reminder that a lot rides on procedural questions like who gets final say (a judge or a jury) over whether a confession can be trusted, and how much power federal courts have to step in when they think a state got something wrong.

The case now goes back to the lower courts mainly to formally carry out the reversal. Hernandez’s habeas petition is denied, and his 25 years to life sentence stands. The broader question about which Seibert opinion is the new precedent remains open and could resurface in a future case that reaches the Court through the normal process, with full briefing and argument.

The bigger takeaway here isn’t really about confessions specifically. It’s about how narrow federal court review of state criminal cases has become. The Supreme Court keeps signaling, case after case, that federal habeas relief is reserved for clear, well-established violations of its own precedent only.