"Statistics don't matter, even if one innocent person is saved it's worth it. "

You realise you could use the same statement to defend the death penalty? There are dozens of people in the UK who have been killed by people on life sentences that have been released but in earlier times would have face the death penalty.

I'm not pro-death penalty. I don't trust governments enough. I'd be happy with whole of natural life (i.e. no release ever) sentences.