of a murder that sent shockwaves through his neighborhood. a crime he insisted he did not commit. to clear his name eric would have to find the real killers, following clues from the confines of his cell. it would take years for the truth to come out. but would it be enough to set him free? here s josh mankiewicz with a bronx tale. sing sing correctional facility. the maximum security prison in new york. this is the big house. home to some of the worst of the worst. killers, rapists, drug dealers. good morning. thank you. it is not where you d expect to find this gentle woman. in sing sing, they call me grandma. grandma is sister joanna chan, a marinol nun. i began working at sing sing