Found this article very interesting. We've discussed the topic, capital punishment, several times. Don't be fooled by CNN, it isn't what you might expect.
http://www.cnn.com/2013/08/22/opinion/blecker-death-penalty/index.html?iid=article_sidebar
http://www.cnn.com/2013/08/22/opinion/blecker-death-penalty/index.html?iid=article_sidebar