Hed been behind bars for nearly two decades. Lost his last appeal. Maybe a nun could help get him into heaven, but could she help him get out of prison . What she helped him do was get a lawyer. And together they hunted for the truth. This is the one case that kept me up at night for six years. He says, i know youre innocent. I know the guys who committed this crime. Tonight, will justice finally arrive . This is my wall of hope. Everyone here has been unjustly convicted and freed. Im lester holt, and this is dateline. Heres josh mankiewicz. Reporter sing sing correctional facility, the maximum security prison in upstate new york. This is the big house, home to some of the worst of the worst killers, rapists and drug dealers. It is not where youd expect to find this gentle woman. In sing sing, they call me grandma. Reporter grandma is sister joanna chan, a maryknoll nun. I began working in sing sing more than 12 years ago. Reporter grandma volunteers at the prison, working with inmates
Nearly two decades. Lost his last appeal. Maybe a nun could help get him into heaven, but could she help him get out of prison . What she helped him do was get a lawyer. And together they hunted for the truth. This is the one case that kept me up at night for six years. He says, i know youre innocent. I know the guys who committed this crime. Tonight, will justice finally arrive . This is my wall of hope. Convicted and freed. Im lester holt, and this is dateline. Heres josh mankiewicz. Reporter sing sing correctional facility, the maximum security prison in upstate new york. Dealers. It is not where youd expect to find this gentle woman. In sing sing, they call me grandma. Reporter grandma is sister joanna chan, a maryknoll nun. I began working in sing sing more than 12 years ago. Reporter grandma volunteers at the prison, working with inmates in a theater program. She even teaches them chinese. [ speaking Foreign Language ] reporter through the years, grandma has helped dozens of men,
A reason. Hed been behind bars for nearly two decades, lost his last appeal. Maybe a nun could help him get into heaven but could she help him get out of prison . What she helped him do was get a lawyer and together they hunted for the truth. This is one case that kept me up at night for six years. He says, i know youre innocent. I know the guys who committed this crime. Tonight, will justice finally arrive . This is my wall of hope. Everyone here has been unjustly convicted and freed. Im lester holt and this is dateline. Heres josh mankiewicz. 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 youd expect to find this gentle woman. In sing sing, they call me grandma. Grandma is sister joanna chan, a nun. I began working at sing sing more than 12 years ago. This is the battle about general. Grandma volunteers at the prison, worki
A reason. Hed been behind bars for nearly two decades, lost his last appeal. Maybe a nun could help him get into heaven but could she help him get out of prison . What she helped him do was get a lawyer and together they hunted for the truth. This is one case that kept me up at night for six years. He says, i know youre innocent. I know the guys who committed this crime. Tonight, will justice finally arrive . This is my wall of hope. Everyone here has been unjustly convicted and freed. Im lester holt and this is dateline. Heres josh mankiewicz. 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 youd expect to find this gentle woman. In sing sing, they call me grandma. Grandma is sister joanna chan, a nun. I began working at sing sing more than 12 years ago. This is the battle about general. Grandma volunteers at the prison, worki
A reason. Hed been behind bars for nearly two decades, lost his last appeal. Maybe a nun could help him get into heaven but could she help him get out of prison . What she helped him do was get a lawyer and together they hunted for the truth. This is one case that kept me up at night for six years. He says, i know youre innocent. I know the guys who committed this crime. Tonight, will justice finally arrive . This is my wall of hope. Everyone here has been unjustly convicted and freed. Im lester holt and this is dateline. Heres josh mankiewicz. 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 youd expect to find this gentle woman. In sing sing, they call me grandma. Grandma is sister joanna chan, a nun. I began working at sing sing more than 12 years ago. This is the battle about general. Grandma volunteers at the prison, worki