Alabama executes man by nitrogen gas for the first time in the US despite concerns

Left: A photo provided by Alabama Department of Corrections shows inmate Kenneth Eugene Smith, who was convicted in a 1988 murder-for-hire slaying of a preacher's wife. Right: Alabama's lethal injection chamber at Holman Correctional Facility in Atmore, Ala., seen in 2002. (Alabama Department of Corrections via AP and AP)

Alabama executed a death row prisoner Thursday using nitrogen gas, becoming the first state in the U.S. to use the gas in an execution, despite concerns about the untested method.

Kenneth Smith, 58, died at 8:25 pm, after a slew of last-minute appeals to several courts, including the U.S. Supreme Court, failed.

This is the second time Alabama has attempted to put Smith to death. In 2022, workers tried and failed to place the intravenous line necessary to kill him with lethal injection drugs. After he was strapped to the gurney for four hours, the execution was called off.