with Kelsey Grammer's emotional confrontation with a man would killed his sister four decades ago. The actor seems ready to forgive but not forget. ABC's Mara schiavocampo has our story. Kelsey.... See More
with Kelsey Grammer's emotional confrontation with a man would killed his sister four decades ago. The actor seems ready to forgive but not forget. ABC's Mara schiavocampo has our story. Kelsey. Reporter: This morning, legendary actor Kelsey Grammer forgiving the man who murdered his little sister nearly 40 years ago. I want to believe that you actually have changed your life. Reporter: The "Frazier" actor speaking video conference to his sister's killer, Freddie Glenn during a parole board hearing Tuesday. I want to believe that you could even find a way to become a useful, productive citizen, flourish. The things you say, I accept a lot of them. Reporter: Glenn was convicted of abducting Grammer's sister Karen with the help of accomplices when she was just 18 and stabbing her to death. And while Grammer accepted Glenn's apology, he said he still wants him behind bars for the remainder of his life sentence. She was a terrific kid. She was a wonderful, wonderful person. I miss her all the time and I -- I accept that you actually live with remorse every day of your life but I live with tragedy every day of mine. This happened when he was only 20 years old. Mr. Grammer wanted Glenn to know that he was traumatically affected by what had happened to his sister. Reporter: Grammer has known tragedy. On/2012episode of Oprah he opened up about his grandfather, father and two half brothers whose lives ended suddenly and tragically. Did you think you were cursed and the family was cursed. No, but I did lose my faith in god for a time. Reporter: But even then his road to forgiveness over his sister's murder was beginning to take shape. You still miss her, I can see. Yeah. Could you forgive them? Maybe. That's just a maybe. Reporter: Now a new father for the sixth time beginning this next chapter of his life with forgiveness and strength. For "Good morning America," Mara schiavocampo, ABC news, new York. Got to be so hard and Kelsey has said about his sister that she was his best friend and the best person he knew.
This transcript has been automatically generated and may not be 100% accurate.