John Stuart Mill on the humane liberal case for capital punishment…

“..the most that human laws can do to anyone in the matter of death is to hasten it; the man would have died at any rate; not so very much later, and on the average, I fear, with a considerably greater amount of bodily suffering. Society is asked, then, to denude itself of an instrument of punishment which, in the grave cases to which alone it is suitable, effects its purposes at a less cost of human suffering than any other; which, while it inspires more terror, is less cruel in actual fact than any punishment that we should think of substituting for it.”