[Willie Green]

They usually have several riflemen firing at once.

Yeah, at least 5 or 6 anyway.
There's no doubt he's gonna die when they all shoot for the heart.
It's doggone impossible for any of them to miss at that close range.
The only thing I'd question is just how instantaneous it was.
Just seems to me that a head-shot would be more humane.
(Not that I care if the scumbags suffer, but ya gotta be considerate of those who must officially witness the execution.)
Even if it only guaranteed unconsciousness a couple of seconds quicker.

[wimpycat]

My husband says if he were ever in that situation, he'd want a firing squad. Give him a blindfold and a cigarette, he said. It's a more dignified way to go than getting your leg shaved and being strapped down on a gurney.