Death Penalty to be Abolished in New Jersey. Good or Bad?

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I personally got really happy when i read this. I know that many people think that child molesters, terrorists etc should die, but i personally think that We shouldn't kill anybody because it's discriminatory, unfair, expensive and if we make a mistake there's no way we can fix it. They are going to change the death penalty for prison for life without possibility of parole, which i think is a good thing. It's the first State that does this since death penalty was re-established in more than half of the USA States, and i hope more States follow this path. What do you think about this?