The US Supreme Court has rejected Alabama’s request to proceed with the execution of Kenneth Eugene Smith using nitrogen gas, a method that has never been used in the United States. The decision, delivered late on Wednesday, halts the state’s plan to administer the untested procedure, which critics argue may violate constitutional protections against cruel and unusual punishment.
Smith, 57, was convicted in 1996 for the murder of Elizabeth Dorlene Sennett. His execution was originally scheduled for July 2023 but was delayed after the state’s initial attempt to administer lethal injection failed. Alabama then proposed using nitrogen hypoxia, a method that involves forcing the inmate to breathe only nitrogen, causing oxygen deprivation. The state argued that the method was painless and quick, but opponents, including Smith’s legal team, raised concerns about potential suffocation and panic.
The Court’s order, issued without comment, effectively forces Alabama to return to existing lethal injection protocols or seek alternative methods. The decision offers no clear timeline for Smith’s execution, leaving the state’s capital punishment system in a state of uncertainty.
Legal analysts noted that the ruling underscores the judiciary’s caution regarding unproven execution methods. The Eighth Amendment’s prohibition on cruel and unusual punishment has historically guided the court’s review of capital punishment procedures. In 2015, the court allowed the use of lethal injection drugs in Glossip v. Gross, but it has consistently demanded that states demonstrate a method’s reliability and humanity.
Alabama’s attempt to introduce nitrogen gas comes amid a nationwide shortage of drugs used for lethal injections, prompting several states to explore alternatives. Three states – Oklahoma, Mississippi, and Tennessee – have authorised nitrogen hypoxia, but none has yet used it. Alabama had positioned itself as a pioneer in adopting the method, but the Supreme Court’s intervention has stalled those ambitions.
The case has drawn attention from human rights organisations, including the American Civil Liberties Union, which argued that the state’s rush to execute Smith using an untested method risked violating his fundamental rights. The state’s lack of transparency about the execution protocol, including details on how nitrogen would be administered, further fuelled concerns.
Kenneth Eugene Smith has been on death row for nearly three decades. His victim, Elizabeth Sennett, was a pastor’s wife whom Smith killed for hire. The case has been tangled in legal appeals, with Smith’s lawyers arguing that his trial was flawed and that he should not be executed.
The ruling is a temporary reprieve for Smith, but the majority of the Court appeared to side with the state on the principle of capital punishment. Conservative justices Clarence Thomas and Samuel Alito dissented, indicating they would have allowed the execution to proceed.
The Supreme Court’s decision does not address the constitutionality of nitrogen hypoxia itself, leaving the door open for future challenges. It simply blocks the state’s request to expedite the execution. Smith’s case will now return to lower courts, where the debate over his execution method will continue.
Alabama’s attorney general has vowed to continue pursuing Smith’s execution, stating that the state remains committed to carrying out the sentence imposed by the jury. The path forward, however, is now uncertain, as the state must either refine its nitrogen gas protocol to meet court standards or revert to lethal injection.
The controversy over execution methods in the United States reflects a broader debate about the death penalty itself. While public support for capital punishment has declined, it remains legal in 27 states. The use of novel methods like nitrogen gas may bring renewed scrutiny to the practice, especially as the Supreme Court’s composition shifts.
For now, Kenneth Eugene Smith remains on death row, his fate suspended by a court wary of untested execution techniques. The case will be watched closely by legal experts and death penalty opponents who see it as a test of the limits of state power in capital punishment.
