...that fucker killed 36 people by setting a building on fire. Let's suppose that a few of them didn't die by smoke inhalation, but actually being burned alive. That fucker burned alive people. One of the most painful deaths one can experience.
I'd say hanging (and again I don't condone it!!!!) is getting out easy.
No, not really. Because if they asked me directly "hey, should we kill this motherfucker?" I'll say no. Even if I had supreme, absolute power. I'm the kind of guy who will catch scorpions in my house and release them in the wild.
I was just putting what the OP said into perspective: "how can ANYONE kill a poor person who burned alive innocent people in such a BARBARIC way that is by hanging?!"
Nope. I already said that what I'm disagreeing with is OP saying that death by hanging is oh so barbaric, when the perpetrator burned people alive. Those victims didn't have the chance of dying by hanging.
It's like saying that I don't agree with physical punishment for misbehaving kids. Let's suppose that a kid skins another kid alive, and the father spanks him as punishment. I'll say "nah, that's wrong. Take him to a psychiatric center instead." And if someone says "so barbaric that the kid got spanked instead of getting his ears pulled, which is more common," I'll say "bruh, that kid skinned someone alive!"
Im not sure its any worse than any method done today outside of inert gas asphyxiation, which ironically has gotten a lot of pushback. If death penalty is done they should allow a choice of options a state could reasonably accomodate with the most humane one they can figure out as the default.