The Last Word with Lawrence O'Donnell 05/01/15

What we know about State's Atty Marilyn Mosby

msnbc's Lawrence O'Donnell talks about the allegations of conflict of interest against the State's Attorney, Marilyn Mosby, who is bringing the charges against six Baltimore officers in Freddie Gray case. Andrew Levy, Kweisi Mfume and Sherrilyn Ifill weigh in. ... more Duration: {{video.duration.momentjs}}