And just how would all y'all bloodthirsty sorts feel after a quickie gruesome execution when it turns out that the person just torn to bits was actually innocent?
Apparently you wish to change the subject from method of execution, to the death penalty itself.
Most would argue that after arrest, modern scientific evidence, witnesses, lawyers, judges, juries, appeals galore, DNA and more, we get the right guy/gal.
And the standard is "beyond a reasonable doubt," not preponderance of evidence.
So if you electrocute them, drug them, hang them or shoot them, the result is the same.
And it is used only very rarely for the most heinous of crimes.