She was kidnapped by her stepfather when she was a child in Oklahoma, captive for 19 years. Then she escaped.

A man from Oklahoma kidnapped his daughter-in-law while he was a child, raped her repeatedly, gave her 9 children and threatened her with violence during its almost 20 years of detention, announced the authorities.

Henri Michelle Piette, 63, was convicted last Thursday by a federal jury of kidnapping and traveling with the intention of committing a sexual act with a minor as a result of a seven-year trial. days detailing the terrible conditions in which Rosalynn McGinnis lived.

McGinnis, now 34, has run away with eight of her nine children in early 2016, after being bonded to a relationship with a couple in a grocery store in Mexico.

"The victim has endured two decades of horrific abuse on the part of the accused. Her courage has led her to escape and save her children, and has allowed investigators and prosecutors to seek justice for her, "said US District Attorney Brian J. Kuester of Oklahoma in a press release. " His courage put an end to the reign of the accused. of terror. "

Piette kidnapped McGinnis in 1997 in his home town of Poteau, Oklahoma, at the age of 11 or 12. McGinnis' mother had a relationship with Piette, the US Attorney's Office said. He "took her to a van" and "married her," according to the Associated Press.

For almost two decades, McGinnis was held captive, forced to change her appearance and use various pseudonyms.

In 2000, at the age of 15, she gave birth to the first child of Piette, authorities said. She would later give birth to Piette's eight other children.

When she was 18, Piette forced the McGinnis to go to a police station in Arizona, where they were living at the time, and told the police an interview from August 2017. Her name had been added to the list after her mother reported her disappearance.

"He parked three blocks from the Phoenix Police Department and he had three of my children," she said. "He told me what to say to them. He said that if I did not come back within two hours, I would never see my children again. "

Authorities said Piette avoided being caught using pseudonyms and moving dozens of times to the United States and Mexico. McGinnis was using Stephanie's fake name when she met Lisa and Ian at the supermarket in Oaxaca, Mexico.

Lisa told NBC affiliate KSHB that she and her husband were lining up at the grocery store when they noticed that Mrs. McGinnis, who was with her children, did not have enough money to pay for her races. Lisa and Ian, who did not want their last name revealed because of fears for their safety, said at the exit that they had started a conversation with McGinnis and finally became friends with her and her children.

The couple realized that McGinnis needed help when, at a home visit, Piette accidentally revealed that he was 62, said Lisa at KSHB. McGinnis was 32 years old and their eldest was a teenager, Lisa said.

A little later, McGinnis and eight of her children fled to Lisa and Ian's house after Piette's death, according to KSHB. The eldest child of McGinnis had already escaped. McGinnis was finally reunited with her family after receiving help from the US Embassy and the National Center for Missing and Exploited Children.

"I am so happy that he is sent back to where he can no longer hurt anyone," McGinnis told KSHB during an interview last week.

The US prosecutor's office said Piette would be sentenced at a later date. Piette maintained his innocence and told Fox23 that most of the complaints against him were "lies".

"Ninety-nine percent of them are lies, I tell the truth," he said at the exit.

McGinnis now lives in the Kansas City area, according to KSHB.