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Pennsylvania's highest court has overturned Bill Cosby's sex assault conviction.
The court agreed with a previous prosecutor that prevented Cosby from being charged in the case.
The court said the prosecution's decision not to charge him allowed for Cosby to speak freely in a lawsuit against him and that testimony was key in his conviction years ago.
Cosby served more than 2 years of a 3-10 year sentence.
He vowed to serve all 10 years rather than apologize.