Maybe I just eat too much red meat or watch too much violence on TV, and perhaps I'm no better than the "animal" I say should be put to death for such a violent crime .. who am I to say?
What I do know for a certainty is that people capable of this type of act against their fellow man cannot be changed. They may be altered in some sense of the word, and may even be coerced into convincing others that they'll never do it again, but someone capable of such brutality cannot be reprogrammed to never do it again .... well .... not without something like a lobotomy.