Registered sex offender Phillip Garrido and his wife Nancy have been arrested in connection with the case and charged with kidnapping and rape. Garrido had previously been convicted of kidnapping and rape.
New details emerged in court papers today about Jaycee's ordeal. It was alleged in the documents that a stun gun was used to subdue the girl when she was grabbed off the street.
And in addition to be repeatedly raped over the years by Garrido, the documents alleged that Nancy Garrido also had sex with the girl.
Jaycee, who had been renamed Allissa, and her two daughters are now with her mother, Terry Probyn, in Northern California.
"My wife says that Jaycee looks good. She looks almost like when she was kidnapped," Probyn said. "She looks very young. She doesn't look 29 at all."
"Jaycee feels really guilty for bonding with this man," Probyn said. "There's really a guilt trip here."
Jaycee was snatched off the street 18 years ago as she waited for the school bus. Probyn heard her scream and saw her get pulled into a grey Ford with a man and a woman. He even chased them down on his bike, but couldn't catch them.
A massive search effort was launched, and Probyn even came under scrutiny. The Probyns' lives were shattered -- the couple moved from their home and their marriage broke up, though they are still legally married.
Though Garrido was monitored by authorities because of his sex offender status and neighbors knew he was spending time around children, it took 18 years for him to make a mistake -- taking Jaycee's daughters to hand out religious material at a local college, where they caught the eye of a police officer.
"He's ruined our lives," Probyn said of Garrido. "Maybe changed his life but it sure screwed ours up. I have no compassion for this guy. He's just out in left field."
Garrido has already begun speaking out, trying to tell his story. In a jailhouse interview with a local television station, he said his story was not one of torture, but of redemption.
"Wait until you hear the story of what took place at this house. You are going to be completely impressed," Garrido said. "It's a disgusting thing that took place with me at the beginning. But I turned my life completely around, and to be able to understand that you have to start there."
Garrido said that having children with Jaycee changed his life and that "they slept in my arms every single night since birth. I never touched them."
His online blog is full of ramblings and notes that he can speak in tongues and control sounds with his mind.
Garrido's brother told ABC News that he used LSD as a teen and met his wife while in prison.
El Dorado County Undersheriff Fred Kollar said in a news conference Thursday that Jaycee had been held captive at a house in Antioch, Calif., since the day she was abducted and that none of their neighbors ever knew.
He described the location as a "hidden back yard" within a larger yard that was arranged in such a way "to isolate the victims from outside contact."
Entrance to the secret yard was guarded by a 6-foot-tall fence, tall trees and a tarp, he said.
Kollar said Jaycee and the two children lived in a series of sheds, including one that was soundproofed and that could only be opened from the outside. In addition, there were two tents in the yard.