Transcript for Two of 12 abused Turpin children read statements during parents' sentencing
Sometimes I still have nightmares of things that have happened. Such as my siblings being chained up or getting beaten. Reporter: When David and Louise turpin last saw their children, some of them were in shackles. Today a stunning final chapter in a case that horrified the world. What some are calling a house of horrors. Inside a home of southern California. 13 siblings living in deplorable conditions. Reporter: Now at their sentencing hearing, face-to-face with some of their children for the first time since pleading guilty to multiple counts of torture and false imprisonment. I cannot describe in words what we went through growing up. Reporter: Cameras tilted down to protect the victims' identity. One daughter wounded but resilient. My parents took my whole life from me, but now I'm taking my life back. Reporter: Their son reading back a message from his sister on forgiveness and grace. I just want to thank them for teaching me about god and faith. I hope they never lose their faith. Reporter: Their father David unable to cope. So emotional, he dished off his statement to his attorney. I never intended for any harm to come to my children. I'm sorry if I've done anything to cause them harm. Reporter: His wife Louise, seemingly full of regret. I pray for my children every day. I want to convey how truly sorry I am for everything I've done to hurt them. I love them more than they can ever imagine. Reporter: The two were stoic as their sentences were handed down, 25 years to life with the possibility of parole in 22 years. Would you say justice has been done? I believe it has. I think that the punishment of 25 to life is what you get in California for first degree murder. I think that's equivalent to what these two individuals did. They took lives in a different way. They robbed their own children of what they could have been. Reporter: But it was the children who fought for their freedom. I live in a family of 15 people. And my parents are abusing. They abuse us. And my two little sisters right now are chained up. Reporter: This audio exclusively obtained by ABC news is our first time hearing from any of David and Louise turpin's children about the abuse and torture to which the parents pleaded guilty in February. And how many of your siblings are tied up? Two of my sisters. One of my brothers. How are they tied up? With rope or with what? With chains. They're chained up to their beds. Reporter: Authorities say it was just before 6:00 A.M. When the turpins' 17-year-old daughter swiped a deactivated cell phone, scrambled out of her bedroom window and made that The reason I ran away from home is because the chains were making -- and they would wake up at night and start crying, and they wanted me to call somebody and tell them. Reporter: Her voice high-pitched, sounding a decade younger than her near 17 years, but her purpose clear. And so I wanted to call. I wanted to call y'all so y'all could help my sisters. Reporter: Her courage couldn't be understated. She risked being chained herself if caught. So you're just around the corner from your house, is that right? I think. I'm not sure. I've never been out. I don't go out much, so I don't know anything about the streets or anything. Reporter: That call would ultimately free the rest of her siblings and land her parents in jail. You've got parents who are torturing their children, causing them pain, causing them suffering over a prolonged period of time, through malnourishment, through physical abuse, through psychological abuse. It's horrific. Reporter: That 911 call shattering the image of what seemed like a big happy family. David turpin once had a steady job with Northrup grummond. The profile featuring family trips like this one to disneyland. The children so often dressed in identical clothing, sometimes numbered. The family of 15 lived in a quiet suburb. This community here in Paris, California is known as the crown jewel of this little town. It's the kind of place where kids play out on the street unchaperoned. Where people keep their lawns tidy and manicured. Did you ever see the kids yourself outside? Not outside. Reporter: Neighbor Mike Clifford who works the graveyard shift says he did see something odd late at night. I'd come home anywhere from 12:30 to 3:00 notice morning and see the kids marching. . Reporter: How long would they March? Hours. Reporter: They ranged from 2 to 29. Some were adults but looked so much younger because of severe malnutrition. To give you an example, one of the children at age 12 is the weight of an average 7 year old. Reporter: When deputies found the 12 siblings, what were the conditions they encountered in that house? They're horrible. It smelled, it's filthy. It's clear that some of the victims, when they're chained, are not being taken to the bathroom to relieve themselves. Reporter: The turpins' 17 year old describing the conditions they lived in in that 911 call. We lived in filth. And sometimes when I wake up I can't breathe because of how dirty the house is. Reporter: These pictures show one of the turpins' Texas homes years ago. Grime on the stairwells, human filth on the floors, scratches on the backs of doors and walls that the new owners had assumed were made by animals. When was the last time you had a bath? Uh, uh, I don't know. Almost a year ago. But sometimes I feel so dirty. I wash my face, and I wash my hair. Reporter: Their mother's neglect, the 17-year-old said was systemic. I don't know much about my mother. She doesn't like us. She doesn't spend time with us ever. Who takes care of you? I take care of myself and mother does buy food for us. So she feeds us. So we never talk. They were afraid that anything they go was going to be taken away. Reporter: Mark is the CEO of the Corona regional medical center where the children spent two months recovering after they were rescued. His cabinet filled with momentos the siblings left behind. They seem to have had enormous impact on the hospital, the staff and you. Patients that came into the emergency room turned into a higher calling for all of us. We essentially adopted them. Reporter: Despite the years of abuse and lack of education. He says the children showed raw talent. She wanted to know about horseback riding. Reporter: Okay. And they took a great interest in horseback riding. So I said, do you have a picture of a horse? And I said I do have a picture of him. So I showed her this picture on Friday. And when I came back in Monday morning they had created this picture. Reporter: A little over a year after that fateful phone call and their dramatic issue, the 13 children are doing well. While the youngest remain cared for, the attorney for the eldest seven says his clients are branching out. All seven of our clients are living more or less on their own. Five are living in apartments. Reporter: Together? Close to each other. And they get together all the time to see each other. Reporter: How many are going to college? Right now five are going to college. Reporter: Although the future remains uncertain for a group in a far different place today than they were in their father's Facebook pictures, it is full of possibility. They are shackled no more. For "Nightline," Matt Gutman in Riverside, California.
This transcript has been automatically generated and may not be 100% accurate.