Execution gone wrong raises questions

In Oklahoma, Clayton Lockett died of a heart attack when he was given an untested combination of drugs in what was intended to be a lethal injection. Judy Woodruff talks to Cary Aspinwall who has been covering the story for Tulsa World. Attorney Roy Englert and Deborah Denno of Fordham University School of Law discuss whether states can implement the death penalty in a humane fashion.