I'll be honest, i never thought about HOW death sentences are executed, mostly because i live in a country where death sentences are seen as barbaric and are not possible thankfully.
But now that i think about it, a "mutli-drug cocktail" sounds like one of the worst ideas, next hanging and guillotine.
Being drawn and quartered or golden bulled sounds like one of the worse ideas.
Hanging, rifle line, and the guillotine are slightly better as they’re less violent and more ‘matter of fact’.
A multi-drug cocktail sounds like one of the most humane methods, medicinally and painlessly ending a life. Sadly they’ve fucked up even that by not doing it properly.