Hanging is very effective, but it's pretty much an imperfect art. A skinny guy needs more drop distance than a 3-400 lb fat guy... and even if you give the fat guy just enough momentun to snap his neck, his head may come off anyway.
I don't understand the big deal about execution drugs. Any local veterinarian can put down large animals, and (alledgedly) in a humane manner.
Anything that puts down a 12-1400 lb horse should certainly take out a human.
The medical way works fine. Every argument people have against it is ridiculous. Patent line and plenty of meds = done job. And there are a number of different meds that will do the trick. The only issue with the meds if I remember was the manufacturer not selling it to the state for that purpose. That should be an easy enough thing to work around tho.
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