Transcript for NXIVM leader Keith Raniere sentenced to 120 years in prison
But first the sentence that will likely keep Keith raniere, that leader of that so-called sex cult, behind bars for the irs of his life. This morning we're hearing from Catherine oxenberg, the mother of one of his victims. Amy is here with that this morning. Good morning, That's right. Raniere who described himself as a self-help guru was sentenced in a federal court in brook ling to 120 years behind bars. At the sentencing his victims told theirales of terror and now Catherine oxenberg is opening up about getting closure for her daughter and her family. This morning, vindication for victims of so-called sex cult leader Keith raniere. Keith raniere will not be able to victimize people anymore after today's sentence and we're very grateful for that. Reporter: Tuesday the founder of self-help group nxivm sentenced to 120 years behind bars for charges including racketeering, sex trafficking and forced labor. Several former members of his organization sharing their relief outside of court. This is the finale for him. His victimization of people, his terrorizing people really is over. 120 years, right? So when I got over my shock like, yeah, yeah, he can't come for me now. One would say authenticity is being as you are. Reporter: Prosecutors say raniere, known as vanguard, was a con man and predator who exploited women blackmailing them to be his slaves and having them branded with his initials. It was the most inhumane, horrific way to treat anybody. Reporter: In court Tuesday raniere maintaining his innocence calling his victims free thinking adults. More than a dozen former members confronting him in court delivering impact statements including India oxenberg who joined the group when she was 19 years old. Emotional at times telling the judge raniere stole seven years of her life calling him a sexual predator adding, I will be a victim of Keith raniere for the rest of my life but I don't need to live as one. India's mother, Catherine oxenberg, spent years publicly fighting to free Indiana from the group. How is your daughter doing? Have you spoken to her? My daughter is still on the inside. She's not back yet. Reporter: This morning, Catherine speaking out exclusively to "Gma." I did everything that I could in my power to stop this man from abusing and exploiting women and today that has happened and people have seen him for who he is, not this mild-mannered guru self-help leader. He is a vile monster and he deserves to ind bars. And raniere's attorneys maintain his innocence saying he is proud of his life's work and determined to fight in this his latest bid for a new trial jected by a judge "The last dance" week, robin. Thank you.
This transcript has been automatically generated and may not be 100% accurate.