Alabama carries out nation's second nitrogen gas execution

Alabama used nitrogen gas Thursday to execute a man convicted of killing three people in back-to-back workplace shootings, the second time the method that has generated debate about its humaneness has been used in the country.

Alan Eugene Miller, 59, was pronounced dead at a south Alabama prison. He shook and trembled on the gurney for about two minutes with his body at times pulling against the restraints. That was followed by about six minutes of gasping breathing.

Miller was convicted of killing three men — Lee Holdbrooks, Christopher Scott Yancy and Terry Jarvis — in 1999 and the state had previously attempted to execute him by lethal injection in 2022.