- Supreme Court rejects Alabama death row inmate’s lethal gas claimNBC News
- Alabama plans first known nitrogen gas execution in the worldWashington Post
- What is nitrogen hypoxia? Execution method stirs ethical controversy.USA TODAY
- Smith’s Spiritual Advisor speaks at execution protest-January 23, 2024- News 19 at 4:30 p.m.WHNT News 19
- Alabama nitrogen gas execution allowed by Supreme CourtThe Washington Post