The Supreme Court on Thursday afternoon turned down a request from an Alabama inmate to block his execution, which is scheduled for today. In an unsigned order, the justices denied Anthony Boydâs plea to put his execution on hold and to decide whether executing him by nitrogen hypoxia would violate the Eighth Amendmentâs ban on cruel and unusual punishment. Boyd had asked to be executed by a firing squad instead. As is customary in cases involving requests for emergency relief, the court did not provide any explanation for its decision.
Justice Sonia Sotomayor dissented from the courtâs decision to allow the execution to go forward. In a nine-page opinion joined by Justices Elena Kagan and Ketanji Brown Jackson, Sotomayor wrote that âBoyd asks for the barest form of mercy: to die by firing squad, which would kill him in seconds, rather than by a torturous suffocation lasting up to four minutes. The Constitution would grant him that grace. My colleagues do not.âÂ
Boyd was convicted and sentenced to death for his role in the 1993 kidnapping and murder of Gregory Huguley. At the time of his sentencing, Alabama used electrocution as the default method of execution. In 2002, the state changed that method to lethal injection; it added nitrogen hypoxia as an authorized method of execution 16 years later.
In June of this year, the stateâs attorney general, Steve Marshall, asked the Alabama Supreme Court to allow Boyd to be executed by nitrogen hypoxia. Boyd went to a federal district court just over a month later, where he argued that doing so would violate the Eighth Amendment. Specifically, he argued (in the words of the federal court) that the stateâs nitrogen hypoxia protocol âposes a substantial risk of severe pain and terror by depriving an inmate of oxygen while he is still conscious, which Boyd says will last at least two minutes and as long as seven minutes.â
The federal district court turned down Boydâs request to put his execution on hold. Boyd, it said, had not âmarshalled sufficient evidence that either Utahâs firing-squad protocol or MAID [medical assistance in dying] would significantly reduce a substantial risk of severe pain caused byâ the stateâs nitrogen hypoxia protocol. The U.S. Court of Appeals for the 11th Circuit upheld that decision, prompting Boyd to come to the Supreme Court earlier this week.
In an order issued on Thursday afternoon, the justices declined to intervene and put Boydâs execution on hold.
Sotomayor began her dissent with a frank description of how she saw the stakes in the case, asking readers to turn on a timer for four minutes: âNow 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. Your mind knows that the gas will kill you. But your body keeps telling you to breathe.â âThat is what awaits Anthony Boyd tonight,â Sotomayor wrote. âFor two to four minutes, Boyd will remain conscious while the State of Alabama kills him in this way.â
Sotomayor noted that nitrogen hypoxia had originally been described âas a more âhumaneâ alternative to lethal injection.â But the experience of Alabama and Louisiana, which have collectively executed seven people using nitrogen hypoxia, she said, indicates âthat nitrogen hypoxia is not at all what it was promised to be.â For example, she wrote, during his 2024 execution, Kenneth Smith âmade âviolent movementsââ and âconvulsed for about two to four minutes, shaking the gurney several times.â During the executions that followed, she continued, âwitnesses have reported similar observations each time,â including âapparent consciousness for minutes, not secondsâ and âviolent convulsing, eyes bulging, consistent thrashing against the restraints, and clear gasping for the air that will not come.â
Sotomayor acknowledged that â[t]he Eighth Amendment âdoes not guarantee a prisoner a painless death.ââ âBut,â she concluded, âwhen a State introduces an experimental method of execution that superadds psychological terror as a necessary feature of its successful completion, courts should enforce the Eighth Amendmentâs mandate against cruel and unusual punishment. Allowing the nitrogen hypoxia experiment to continue despite mounting and unbroken evidence that it violates the Constitution by inflicting unnecessary suffering fails to âprotect the dignityâ of âthe Nation we have been, the Nation we are, and the Nation we aspire to be.ââÂ
Cases: Boyd v. Hamm
Recommended Citation:
Amy Howe,
Court turns down manâs request to die by firing squad,
SCOTUSblog (Oct. 23, 2025, 7:18 PM),
https://www.scotusblog.com/2025/10/court-turns-down-anthony-boyd-request-to-die-by-firing-squad/





