Hi Rachel,
Welcome to the site. I too have spent my life against the DP but age, and hopefully a bit wisdom have taught me that there are cases that just plain cry out for death, some people commit crimes that are so depraved they give up their right to live. I don't think every murder should result in the DP, but that isn't what happens in this country, we reserve the DP for the worst of the worst and that's just fine by me. Again, welcome to the site.
Sue