EXPLAINER: Why Bill Cosby's conviction was overturned

Bill Cosby’s sexual assault conviction has been thrown out by Pennsylvania’s highest court, which ruled that he was unfairly prosecuted because a previous district attorney had promised he wouldn't be charged

PHILADELPHIA -- 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. Cosby, 83, was the first celebrity tried and convicted in the #MeToo era, and his conviction was seen as a turning point in the movement to hold powerful men accountable for sexual misconduct. Here's a look at the case against Cosby and the court's decision: WHY DID THE COURT TOSS HIS CONVICTION?