6.4K views · 192 reactions | Alabama executed Kenneth Smith, the first death row inmate known to die by nitrogen gas, marking the emergence of a wholly new method of execution in the United States. Smith's legal team – alongside experts and advocates from the US to the United Nations – had voiced concern that nitrogen hypoxia could lead to excessive pain or even torture. https://cnn.it/3vRbZIP | CNN | Facebook

17 reactions | The state of Alabama is set to carry out the first U.S. execution by nitrogen gas, potentially setting new precedent for death row execution methods. Devin Dwyer has more. | ABC News Live | Facebook