The update from authorities came a day after they announced that Closs, 13, was found alive following a almost three-month disappearance.
The discovery Thursday of Jayme "does provide hope for those who are still looking", said Alison Feigh, director of the Jacob Wetterling Resource Center. Even during the 88 days of captivity of Jayme - we still don't think that anybody assisted him in that. Did he take things with her? "And to chase after that is, it's, I mean, she'll never go back to that". "Did he buy food?" he said.
The teen was able to escape from a cabin before flagging down a pedestrian walking her dog in the town of Gordon. But the sheriff said it did not appear Patterson interacted with the couple during his brief time there.
"And I would tell her that this experience might feel like it's defining, it might feel like that's who she is now, but it doesn't have to be", Smart said.
Patterson went to the Closs home outside Barron, Wisconsin, with the intention of taking Jayme, Fitzgerald said.
They described the 13-year-old as the suspect's "only target" and said Jayme was "taken against her will".
The sheriff calls it "a very well-planned out attack".
Patterson's high school teachers barely remember the now 21-year-old man who graduated only three years ago, and say they didn't realize he still lived in the area.
There's no evidence Patterson knew the Closses or had previous contact with them, the sheriff said. The only link between them is that Jake worked for a single day at the Jennie-O turkey plant where Jayme's parents were employed for 27 years.
According to a neighbor, Patterson's parents moved away but the two sons continued to use the home.
"Jayme is the hero in this case, there's no question about it", he said. Investigators are trying to determine whether he worked at another job in the area.
Police arrived to find the door kicked in, Jayme missing and her parents dead.
During the intense, nationwide investigation for Jayme, officials from the FBI, state patrol and local law enforcement received thousands of tips.
The cabin is in Eau Claire Acres, about 10 miles outside the tiny town of Gordon, in the dense evergreen forests of north-western Wisconsin.
Straub also said Jayme's case brings up the issue of victim privacy.
They sought refuse with husband and wife Kristin and Peter Kasinskas while the police turned up.
The investigation suggested that the suspect didn't know any family members at the home, nor had he been in touch with them, but allegedly went there with the goal of kidnapping the teen, Fitzgerald said. Last month he got a cake that read: "Happy Birthday Rose" for her 36th birthday.
Jayme's grandfather Robert Naiberg said in a telephone interview on Saturday that no one in the family knew Patterson.
Jeff Closs, Jayme's uncle, said that the teen's return was shocking.
Jayme spent Thursday night in hospital but has since been released.
Jayme was pictured smiling alongside her relieved aunt Jennifer Naiberg Smith, who gave permission for the image to be used after their emotional reunion. At some point on Thursday, she escaped the home on foot and found her way to safety.