The kidnapping of 14-year-old Jayme Closs from her parent's Wisconsin home more than a year ago captured the nation's attention for weeks but left more questions than answers.

For the first time since Jayme returned home on Jan. 10, investigators have released a trove of documents, which are shedding new light on her parents' brutal murder in their home and her 88-day captivity. Up until this point, her ordeal remained a mystery to anyone outside the Closs family and law enforcement.

BODY FOUND LIKELY MISSING TEXAS MOM HEIDI BROUSSARD, POLICE SAY; NEWBORN FOUND ALIVE, SUSPECT ARRESTED

Thousands of investigative reports released by the Wisconsin Department of Justice on Friday revealed disturbing details about the three-month period where Jayme was being held hostage by her parents killer, 22-year-old Jake Patterson.

The newly released transcripts from police interviews with Patterson following his arrest showed the psychological manipulation that Jayme underwent.

“I know that she was just (expletive) terrified of me," Patterson, who is serving a life sentence for the shooting deaths of James and Denise Closs, said. “I just trusted her and that, she wouldn't try to get out.”

The transcript of Patterson's interview paints a picture of a man who acted on impulse and controlled Jayme's movements around the cabin where she was held more than an hour away from her family home.

BARNARD COLLEGE STUDENT, LEFT FOR DEAD, STUMBLED THROUGH PARK FOR HELP BEFORE FINDING SECURITY GUARD

Patterson believed he had restrained Jayme with fear, telling police he never put extra locks on the doors or windows, because he thought she'd never leave. He said he was counting on “mind things” to keep her from running.

Patterson also admitted to having sexual thoughts about the then-13-year-old girl but refused to act on them because of the guilt he had from killing her parents. He said they slept in the same bed.

Much of the documents are heavily redacted.

Patterson said he became drunk one night and let Jayme write a letter to her aunt but he never sent it. He also told police that he allowed Jayme out of the house on rare occasions to walk in the yard with him but never off the property.

The documents also revealed Patterson’s train of thought during the killings and his desire to kidnap anyone: “If it wasn't Jayme, it would probably be someone else,” he said.

CLICK HERE TO GET THE FOX NEWS APP

Officials also released the horrifying 911 call Jayme’s mom placed, seconds before she was killed and another video from a police dashcam that showed responding officers pass right by Pattersons car on the way to the initial crime scene.

Jayme was in the trunk of that car.

The Associated Press contributed to this report.