Oscar Franklin Smith, a Tennessee death row inmate scheduled for execution on May 22, will die by lethal injection if the process moves forward. Smith, who was asked to choose between lethal injection and the electric chair, declined to pick, his attorney Kelley Henry, a supervisory assistant federal public defender, said. When an inmate does not choose, the method defaults to lethal injection. It's not the first time Smith has been given this grim decision and declined. That decision to not choose ultimately saved his life for three more years.