Ah yes, Brad Sigmon. Apparently he actually chose firing squad himself, versus electric chair or lethal injection which can often get botched. Even says he found Jesus.
Great humane, nontraumatic way to execute someone for all involved, that never goes wrong because all executioners have 100% perfect aim every time. Also not messy so that saves on cleaning costs which saves the hardworking US taxpayer. Makes the funeral simpler too as you can't have an open-casket and can fit the body parts in a smaller coffin (so even more cost savings for the family). Stay classy, America.
The Dignitas clinic in Switzerland uses a barbiturate drug to euthanize people painlessly in their sleep. So does your vet. The US can't do that as easily because drugs companies apparently refuse to allow their drugs for penal purposes. So you use some other concoction, which often goes wrong or takes longer than it's supposed to. (But suffering is the whole point, right? Bastards got what they deserved.)
Why not just go back to good old-fashioned beheadings like your Saudi friends? Still fast, cheaper than wasting bullets, and everyone gets free public entertainment. Kill two birds with one sword.
Or you could use inert gas to allow people to pass out more peacefully. Plenty of pro-euthanasia groups already do that.
Or crazy commie thought of the day: just not have capital punishment and become a bit more civilized. 🤔 (But then there'd be no deterrent, right? And your violent crime rates would go up. Unlike now where it keeps them super low.)