Whitey Bulger apparently beaten to death in prison, sources say

Law enforcement sources tell CBS News Whitey Bulger apparently was severely beaten by one or more inmates before his death in prison. The notorious mob boss was found unresponsive in his cell Tuesday. He was serving a life sentence for his role in 11 murders and other crimes. Other reports say he was targeted in prison for being a government informant. Nikki Battiste reports.