This may be splitting hairs at this point, but what really is the difference between burning somebody to death and stoning them to death? Is it just a personal preference, or are you taking something else into account, because I consider them both barbaric forms of punishment.
Barbaric forms of punishment are required for crimes which are of barbaric nature. Simple jail terms, with access to 5-star food and video-game consoles will only encourage these sort of crimes. These people should be made to suffer.
Just simply shot them in the head. We don't need to torture them (and became something similar to them), we need to get rid of them (together with everyone else who could ask for revenge) on a quick, efficient and
.