One death row prisoner has been executed using fentanyl before, namely
Carey Dean Moore. Nevada almost executed another death row inmate,
Scott Dozier, but they never went through with it. There's also a decent
VICE report on the case I found recently.
I'm not even a United States citizen and I'm still unsure how I feel about the death penalty, but I feel like if you're going to have it, you might as well stop pussyfooting around and just shoot people.
Also, don't think I haven't noticed that you guys are clearly trying to derail the thread on purpose to distract from Thomas Gauntt's many misdeeds.