The Supreme Court just stepped in to block Alabama from moving forward with an execution using nitrogen hypoxia, which is a big win for the ongoing legal battles surrounding Death Penalty protocols. According to CNN, the court’s intervention prevents the state from using this relatively new method on Jeffery Lee, who was convicted of capital murder in connection with a 1998 pawnshop robbery in Orrville, Alabama. It’s worth noting that the Supreme Court often handles these emergency death penalty appeals without providing a full explanation for its reasoning. In this instance, the majority did not detail why they chose to block the execution. However, CNN reported that three conservative justices, Clarence Thomas, Samuel Alito, and Neil Gorsuch, would have allowed the execution to proceed, though they also didn’t provide their specific reasoning for that stance. The core of the issue is whether nitrogen hypoxia violates the Eighth Amendment’s ban on cruel and unusual punishment. A federal appeals court in Atlanta reportedly concluded that the protocol presents “a substantial risk of serious harm– severe pain and over and above death.” Another lower federal court reportedly suggested that a firing squad would be a more feasible option that could significantly reduce the risk of harm for Lee. CNN reported Nitrogen Hypoxia is a form of chemical suffocation The court’s current ruling stops the use of nitrogen gas. However, it doesn’t entirely foreclose the possibility that Alabama could attempt to execute Lee by firing squad in the future. CNN notes pharmaceutical companies have increasingly declined to allow their drugs to be used for lethal injections. This shift forced states to look for alternatives, and Alabama eventually focused on Nitrogen hypoxia, or Inert gas asphyxiation. Alabama has already executed seven people using this method. Federal judge rules Alabama cannot execute death row inmate using nitrogen hypoxiahttps://t.co/xkQ1Hsp77b— WEAR ABC 3 (@weartv) June 9, 2026 When Kenneth Smith became the first person in the nation to be executed using nitrogen gas in 2024, it sparked intense debate. CNN reported that Smith’s execution process began at 7:53 PM CT, and Smith was pronounced dead at 8:25 PM CT. Witnesses reported that Smith appeared conscious for several minutes and shook or writhed on the gurney, which officials later characterized as expected involuntary movements or agonal breathing. The mechanics of the procedure involve a mask used to administer nitrogen, which replaces oxygen in the body and essentially disables the respiratory system. As CNN pointed out, experts have raised alarms that this method has the potential for air hunger, seizures, or the risk of vomiting into the mask, which could lead to choking or the aspiration of stomach acid. Dr. Jonathan Groner, a professor of surgery at The Ohio State University College of Medicine, previously CNN that there is no real blueprint for this method. But, he noted, it is unlikely a person would simply fall asleep without a struggle. Breaking News: The Supreme Court blocked Alabama from using nitrogen gas to execute a man convicted of murder. https://t.co/Or8UAyu584— The New York Times (@nytimes) June 12, 2026 In earlier instances, the Supreme Court reportedly allowed executions involving nitrogen hypoxia to go forward. Back in October, the court denied a request from Anthony Boyd to halt his execution in Alabama. In that case, the three liberal justices issued a strong dissent. Justice Sonia Sotomayor wrote, “Now imagine for that entire time, you are suffocating. You want to breathe; you have to breathe. But you are strapped to a gurney with a mask on your face pumping your lungs with nitrogen gas.” She continued, “Your mind knows that the gas will kill you. But your body keeps telling you to breathe.” What makes Lee’s case distinct from many other emergency matters is that a federal district court had already entered a ruling on the merits. Steve Vladeck, a professor at Georgetown University Law Center and a CNN Supreme Court analyst, pointed out that handling this case on the emergency docket was problematic. The Supreme Court on Thursday blocked Alabama from executing a man using nitrogen hypoxia, a relatively new method of carrying out the death penalty that experts say causes “air hunger.” https://t.co/ZBL41PQ4nw— CNN (@CNN) June 12, 2026 In a brief to the Supreme Court, Vladeck argued that the case should have been dealt with on the regular merits docket, where the justices have access to more extensive briefing and the opportunity for oral arguments. He stated that dealing with such a case on the emergency docket “isn’t — and shouldn’t be — one of them.” Following the ruling, CNN reported that Alabama Governor Kay Ivey expressed her disappointment in a statement. “I remain committed to ensuring that justice is ultimately served for his victims,” she wwrote. The Supreme Court declined a request from Alabama to move forward with a scheduled execution using nitrogen hypoxia, with Justices Clarence Thomas, Samuel Alito and Neil Gorsuch dissenting. https://t.co/PlI1ty1wlT— CBS News (@CBSNews) June 12, 2026 Per the outlet, Lee’s original sentencing was also notable, as the trial court overruled a jury’s recommendation for life imprisonment and sentenced him to death instead.