Nathanael Williams killed a man when he was barely 16. He spent most of his life growing and maturing in Canada’s tough and sometimes unfair prison system, where he’s always been held accountable. At 43, he hopes he will soon be released.  Mary Wiens joins former CBC colleague Kim Steffler as Nathanael tells his story. And they meet a Corrections officer who helps Black inmates like Nathanael prepare for parole hearings.