Witness describes Alabama’s first execution by nitrogen gas - The Hill
- Witness describes Alabama’s first execution by nitrogen gas The Hill
- Alabama AG calls first nitrogen gas execution 'textbook,' but witnesses say inmate thrashed in final moments Yahoo News
- A brief history of the death penalty The Telegraph
- Four minutes of convulsions: Kenneth Smith executed with nitrogen gas Montgomery Advertiser
- Nitrogen gas execution was ’22 minutes of horror’: Spiritual adviser NewsNation Now