The teenage girl arrested Wednesday in the weekend slaying of a Zachary man claimed she had been repeatedly raped by him since she was 4 years old, according to allegations laid out in over 100 pages of court documents.

Brittany Monk, 17, and her 21-year-old boyfriend, Jace Crehan, are accused of strangling and stabbing Robert Noce before stuffing his body inside a 55-gallon plastic drum and leaving it in the kitchen of his Zachary home where it was discovered Saturday.

While authorities Thursday wouldn’t confirm whether Monk is the girl Noce was convicted of sexually abusing — he began serving probation after pleading no contest on June 22 to carnal knowledge of a juvenile — court documents clearly state Monk’s full name as the victim in the child sex crimes.

Monk began living with Noce at age 2 when her mother and Noce started a relationship in 1999, the documents say. After an incident in which Monk’s mother said she was raped by Noce, she left him but had to leave Monk, who was 3 years old at the time, and her sister, an infant, with Noce as she was unable to care for the girls, according to the court documents. Monk lived with Noce until 2012, according to the documents.

Monk told police that nearly every night, Noce forced her to engage in a wide range of sexual acts with him, sometimes making her consume sleeping pills and sedatives like Xanax first, according to police reports. He would sometimes wake the child up in the middle of the night, telling her that her mother was coming to pick her up, all the while knowing her mother wasn’t coming, according to the documents. After Monk got dressed and had waited a while, Noce would tell her, “Your mom doesn’t love you. Your mom doesn’t want you,” the documents say.

In 2012, after the family’s living situation changed and Monk was able to live with her mother again, the then-15-year-old admitted to having been sexually abused throughout her childhood by Noce, and her mother notified authorities, according to police reports.

A police search of Noce’s residence when the 2012 allegations surfaced revealed seven bottles of sleeping pills, six containers of prescription opioid painkillers and relaxants and at least 15 bottles of over-the-counter cold medications, along with three handguns, according to a police report.

One of Noce’s former girlfriends told police he made her watch pornographic videos depicting bestiality and had pictures stored on his computer of young nude girls, according to the documents.

In 2013, a grand jury indicted, Noce, 47, with the aggravated rape of a child. In a plea agreement, Noce pleaded no contest to a reduced charge of carnal knowledge of a juvenile on June 22, and 19th Judicial District Judge Trudy White suspended his 10-year sentence and instead placed him on five years of supervised probation.

His nephew, Kelton Noce, standing inside a sprawling Greenwell Springs house Thursday, said Robert Noce “was very much a family man,” who was close with his children. “He was a God-fearing man,” the 38-year-old said.

“This is very tragic,” he said of his uncle’s death. “Really unexpected. Really caught off guard and doesn’t make any sense to any of us.”

Kelton Noce said he knew the accused couple but didn’t want to comment on them or their relationship to his uncle.

Brittany Monk is apparently pregnant with Crehan’s child, according to her Facebook profile and an online baby registry.

Multiple attempts to speak with Crehan’s and Monk’s family members Thursday were unsuccessful, but a friend of Monk’s said she was secretive about her past.

“She mentioned she’s had a bad life. I was her best friend at the time,” said William Mosley, 19, a former classmate of Monk’s. He said he hasn’t seen her in about two years.

Robert Noce had been strangled, stabbed multiple times and crammed into a barrel but not dismembered, said East Baton Rouge Parish Coroner Dr. Beau Clark. Investigators believe the man died before being placed into the container in his kitchen.

East Baton Rouge sheriff’s deputies arrested Monk and Crehan, of Denham Springs, on Wednesday. The two were booked into Parish Prison on counts of second-degree murder. Bail has been set at $400,000 for each of them.

Police said Crehan confessed to stabbing and strangling Noce and placing him into the bin. Monk’s DNA was found on the drum containing Noce’s body.

Sheriff’s detectives said Monk was present during the incident and participated, but spokeswoman Casey Rayborn Hicks declined to elaborate on her role.

“We have to continue to process evidence,” Hicks said. “Once we gather that evidence, then we forward all of that to the district attorney to use for prosecution. We are very limited at this time because it is still ongoing.”

East Baton Rouge District Attorney Hillar Moore declined on Thursday to comment on the case.

A man in a Denham Springs trailer Thursday who identified himself only as a relative of Crehan’s declined to comment.

“It’s not something that needs to be talked about,” he said.

Staff reporter Danielle Maddox contributed to this article.Follow Maya Lau on Twitter, @mayalau.