Do you think pedophiles and rapists deserve the death penalty?

Myself and my colleagues at work today were discussing the death penalty and if it is warranted. I personally think it is for cold blooded murders, pedos and rapists and there's no justification for such crimes and its cheaper than charging the tax payer to keep them alive.
But others think its inhumane.

Your thoughts?
Do you think pedophiles and rapists deserve the death penalty?
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