- Alabama Executes Kenneth Smith by Using Nitrogen, a First in the U.S. The New York Times
- Alabama inmate Kenneth Smith executed with nitrogen gas, marking the emergence of a wholly new method of capital punishment CNN
- Alabama Convict Becomes First Known Person Executed by Nitrogen Hypoxia | Jan. 25, 2024 | News 19 at WHNT News 19
- Mengele-like logic underpins Alabama’s plan to gas a man to death Montgomery Advertiser
- Letters to the Editor: Could Alabama export its new execution method? Los Angeles Times






