The Supreme Court issued a late-night ruling Thursday that prevents Alabama from immediately executing a death row inmate using nitrogen gas, marking a significant development in the ongoing legal battle over execution methods across the United States.
In a brief one-sentence order, the nation's highest court denied Alabama's request to proceed with the execution of Jeffery Lee, who was convicted of a 1998 double murder. Lee had been scheduled to die on July 11. The ruling upholds a lower court determination that Alabama's nitrogen gas protocol may violate the Eighth Amendment's prohibition against cruel and unusual punishment.
Three justices—Clarence Thomas, Samuel Alito, and Neil Gorsuch—indicated they would have sided with Alabama, though they did not issue a written dissent. The decision represents a temporary reprieve for Lee, who challenged the execution method on grounds that nitrogen gas subjects individuals to prolonged and painful suffocation.
The case has wound through multiple levels of the federal judiciary. A federal district court initially rejected Lee's argument and permitted Alabama to proceed with its preferred execution method. However, on Monday, an appeals court reversed that decision, determining that Alabama's protocol for administering nitrogen gas executions "presents a substantial risk of serious harm—severe pain over and above death itself."
Eyewitness accounts from previous nitrogen gas executions have raised serious concerns about the method's humaneness. Journalists and advocates who observed such executions reported that those subjected to the procedure writhe and retch during the process. Justice Sonia Sotomayor, in a 2025 dissent when her conservative colleagues permitted a different nitrogen gas execution, characterized the experience of suffocating as "intense psychological torment." A group of physicians filed a brief in the current case stating their professional opinion that execution via nitrogen gas "necessarily causes inhumane suffering."
The legal framework governing execution method challenges stems from Supreme Court precedent dating to 2008, which requires death row inmates contesting their method of execution to propose an alternative that would not violate constitutional protections. Lee satisfied this requirement by suggesting Alabama execute him via firing squad instead.
Alabama filed its emergency appeal to the Supreme Court early Thursday morning, contending that nitrogen gas executions do not "cause the kind of severe pain that characterized cruel punishments before the founding." The state pointed to the Supreme Court's approval of its first nitrogen gas execution in 2024 as precedent. Since that initial execution, eight such procedures have been carried out, with seven occurring in Alabama. State officials also argued that assembling a firing squad would be impractical.
The ruling arrives during a period of increased execution activity nationwide. According to the Death Penalty Information Center, states executed 47 individuals in 2025, representing the highest annual total in more than a decade. Thus far in 2026, states have executed 15 people, not including Lee. President Trump has advocated for expanding capital punishment during his second term, despite the federal death row currently housing only three inmates.
The shift toward alternative execution methods reflects practical challenges states face in obtaining drugs traditionally used for lethal injections. Major pharmaceutical companies have increasingly refused to supply medications for executions, prompting some jurisdictions to adopt methods such as firing squads and gas chambers.
While the Supreme Court's decision delays Lee's execution, it does not remove the death penalty sentence itself. Lee remains on death row as the legal proceedings continue.
