David Ranta, 58, was imprisoned in New York for more than two decades for murdering Brooklyn Rabbi Chaskel Werzberger, a crime he didn't commit. CNN's Mary Snow reports on the evidence that led to his conviction, and the witness who came forward two years ago to reveal a long-held secret. Ranta left a Brooklyn courthouse as a free man Thursday afternoon.
For more on the story, watch 1991 wrongful conviction overturned
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