It’s probably the most fast and humane way; a bullet to the head.
What ever gets the job done—poison, hammer to the head, or the firing squad.—Its it was good enough for Emperor Maximilian its good enough for our criminals.
A bullet to the heart is actually the most guaranteed and quickest way. Unpredictable things can happen with a head shot.
It’s probably the most fast and humane way; a bullet to the head.
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I watched a video of WWII executions by firing squad. Nine shooters were used, the shots were to the chest and death seemed to be quick with no suffering.