The man who killed Jeffrey Dahmer has a son. He found out what his father did from the evening news. On November 28, 1994, guards left Dahmer in a prison gym bathroom with two other inmates for about 20 minutes. Only Christopher Scarver walked out alive. He was already serving life for murder. In the video below, his son, now a college senior, talks about growing up with that name. For years he hoped his father would come home. Then it hit him that he never would, and it turned into anger. As a teenager he started going down the wrong road. So he wrote to the man who killed Dahmer and told him everything. His father wrote back: "Tough times don't last. Tough people do. And you are the toughest kid I know." He keeps his dad's prison photo in his dorm room. This month Dahmer is back on TV in American Horror Story. Scarver is still serving three life terms in Colorado. Could you still love a father like that?