Do some people deserve to die?

All life has value and nobody is the sum total of the worst or greatest thing they've ever done. And that blood doesn't wash away blood. But, on a less philosophical note and on a more personal one, I tend to have a 'kill em all' way of thinking about things. If I dont like somebody, well they're better off dead. A good thing I live in a civilised society, I mean the moment the zombies get lose and the world goes to shit I'm going Attila the Hun!!