Curry Grayson was executed in Alabama using nitrogen inhalation, marking only the third time this method has been employed worldwide. Grayson, convicted of a brutal murder in 1996, expressed anger during the execution. The method of execution drew criticism from UN experts, who argue it could constitute a form of torture and is prohibited by international law. This execution is among 22 carried out in the U.S. in 2023, with many states having abolished the death penalty or paused executions.