The U.S. Supreme Court has definitively blocked Alabama's attempt to execute Jeffery Lee using nitrogen gas, voting 6-3 to deny the state's last-minute request on June 12, 2026. This ruling follows a federal appeals court decision that the method might violate constitutional protections against cruel and unusual punishment. Alabama now plans to pursue lethal injection for Lee's execution, continuing the national debate over execution methods. The case represents a significant setback for nitrogen hypoxia protocols, which Alabama pioneered in 2024. BBC News+2
U.S. District Judge Emily C. Marks previously issued a permanent injunction against Alabama's nitrogen execution protocol, calling it unconstitutional. The 11th Circuit Court of Appeals upheld this ruling, ordering further study of the method's potential for causing undue suffering. Despite Alabama Attorney General Steve Marshall's arguments that safety concerns were addressed, the Supreme Court declined to intervene in favor of the nitrogen method. Toronto Star+2
The execution method involves replacing breathable air with pure nitrogen, causing death by oxygen deprivation. While Alabama first used this technique in 2024, reports indicated some executions took up to 30 minutes, raising ethical concerns. Medical experts testified that prisoners could experience panic, seizures, or severe pain before losing consciousness. The Supreme Court's rejection marks the first high-profile judicial rebuke of the method. The Independent+2
In an unsigned order with no written explanation, the Supreme Court halted Lee's nitrogen execution just hours before it was scheduled on June 11. The 6-3 vote establishes a potential precedent against nitrogen hypoxia, though Alabama retains the option to use lethal injection. The decision comes as multiple states consider adopting alternative execution methods amid drug shortages for lethal injections. The Independent+2