Alabama Judicial Building, where the state supreme court meets, is seen in Montgomery, Alabama, U.S. September 26, 2019. Picture taken September 26, 2019. REUTERS/Chris Aluka Berry/File Photo Acquire Licensing Rights Sept 22 (Reuters) - The Supreme Court of Alabama is weighing whether to allow the state to become the first to execute a prisoner with a novel method: asphyxiation using nitrogen gas. Last month, Alabama Attorney General Steve Marshall asked the court to allow the state to proceed with gassing Kenneth Smith, who was convicted of murder in 1996, using a face mask connected to a cylinder of nitrogen intended...