Carey Dale Grayson, 50, was executed by nitrogen hypoxia Thursday evening at the Holman Correctional Facility in Atmore, Alabama. Grayson, who fought the restraints, was the third person to be executed by nitrogen hypoxia in the state — and also the country.

Prison officials in Alabama have executed convicted murderer Carey Dale Grayson, marking the state's sixth death sentence and third using the nitrogen gas method so far this year.