EXPLAINER: Why Bill Cosby's conviction was overturned

Bill Cosby’s sexual assault conviction was thrown out Wednesday by Pennsylvania’s highest court in a ruling that swiftly freed the actor from prison more than three years after he was found guilty of drugging and molesting Temple University employee Andrea Constand at his suburban Philadelphia mansion.

Bill Cosby conviction vacated

JoAnn Pileggi reports from the state prison where Bill Cosby was released after his conviction was vacated by the Pennsylvania Supreme Court