Anyone that knows me knows I'm not a killer (anymore). I learned my lessons in a long ago war, and it's become my belief system to this day. So I try not to kill anything, (except for fish which I eat to help stay alive).
I'm not being an apologist here, so please don't misunderstand me. I've made my views on killing known in these forums many times before.
I think that one human killing another human is just about the most vile thing that any person can do, and like a rabid animal, the killer(s) must be removed from society so they do not infect others.
But that doesn't mean that I have to become a sadist as to the method of that removal. A public hanging with a quick death would be my choice, and then dispose of the bodies at sea.