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An Ohio man and his adult son were sentenced to spend the rest of their lives in prison after they were convicted of kidnapping, chaining and raping a 13-year-old girl and her step-siblings.

Timothy Ciboro, 53, was sentenced to 71 years and two consecutive life sentences on Friday, court documents show. His son, Esten Ciboro, 28, was sentenced to 68 years plus life without parole. Should either ever be released, he will have to register as a sex offender.

Timothy Ciboro and his son, Esten Ciboro, were convicted of endangering children, kidnapping and rape in Toledo, Ohio. WNWO-TV

According to court documents, the girl — who is Timothy Ciboro's stepdaughter, and whom NBC News is not identifying because she is a minor— told police that the Ciboros kept her shackled to a support beam in the basement, where she was fed old, spoiled scraps of food and forced to use an ammonia-filled bucket as a toilet.

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Juries in three separate cases found Timothy Ciboro guilty on five counts of rape, two counts of kidnapping and one count apiece of endangering children through torture, cruelty and abuse.

Esten Ciboro, who was charged in only two cases, was found guilty of three counts of rape, two counts of kidnapping and one count each of endangering children through abuse and torture.

"The torture, terror and sexual abuse that you inflicted on these children is disgusting, perverted and reprehensible," Lucas County Common Pleas Judge Linda Jennings told the Ciboro, according to NBC station WNWO of Toledo.

Related: 13-Year-Old Girl Locked in Basement for More Than a Year, Toledo Police Say

Both Ciboros represented themselves, with standby lawyers ready to assist if needed.

"This whole thing is just so tragic for the little kids," Timothy Ciboro's standby counsel, John Thebes, told NBC News, adding that it must have been difficult for the children to testify in a courtroom full of strangers.

C. Drew Griffith, stand-by council for Esten Ciboro, said the case was an example of the justice system's working.

"It certainly seems justice was served in the end," Griffith said.