Author Shaka Senghor here shares perhaps the most compelling parts of his story: the letter from his son he received in prison admonishing him as a murder that ultimately inspired him to write his first book. Shaka shares that and another sobering letter from the mother of the man he killed. "That was the moment I came face to face with the humanity of the man whose life I was responsible for taking," Shaka says. He continues to describe the time he spent in prison from 1991 to 2010, his emergent success as an author, and his perspective on how to effectively reform the criminal justice system. Watch above.