Their bodies were found October 15 after a mysterious 911 call led deputies to their home in Barron, Wisconsin. "It was awesome. The stress, the relief - it was awesome", Barron County Sheriff Chris Fitzgerald said, describing the moment he learned Closs had been found.
James Kuffel, the township's lone constable, said he knows nearly everyone in the area but has never encountered the Pattersons.
Investigators are working to establish a connection and don't believe Patterson and Jayme interacted on social media.
Almost three years ago, Patterson worked for one day at the same meat products facility where Jayme's parents also worked - the Jennie-O Turkey Store plant in Barron - the company's president said. Patterson quit, saying he was moving from the area, according to the company.
"We have recovered a gun consistent with what was used at the scene of the initial homicide", said the sheriff.
While authorities are still trying to determine the motive behind the kidnapping, more details about Patterson have emerged.
Thousands of volunteers and hundreds of law enforcement officers had been searching around the clock for her after her parents were found shot dead in their home, the front door open and the girl gone.
The first published photo of Jayme on Friday shows her smiling with her dog, Molly, and her aunt.
The girl's name rose to the top of the FBI's missing persons list, and authorities offered a US$50,000 reward for information leading to her recovery. "But I'd also tell her that there is no going back to who she was before she was kidnapped, before this happened".
Neighbor Daphne Ronning told the Milwaukee Journal Sentinel that the parents moved away but that Patterson and his older brother, Erik, continued to stay in the cabin.
Jeff Closs, Jayme's uncle, said that the teen's return was shocking.
"I'm lost and I don't know where I am, and I need help", Jayme told Nutter.
Nutter and Jayme went to the closest house, the home of Kristin and Peter Kasinskas, and they called 911.
"Did he take things with her, did she go with him to the store, did he buy clothes for her, did he buy food", he said. She said she did not know Patterson was living at the house and had not seen Closs.
Jeanne recalled: 'She just yelled, "Please help me!"
When they arrived, Kasinskas fed Jayme while they waited around half an hour for the police to arrive, Kasinskas told MPR.
Patterson was unemployed at the time of his arrest but worked one day in 2016 at the same Jennie-O turkey plant in Barron as Closs's parents.
After Jayme confirmed her identity to the couple, she explained to them that she escaped from her kidnapper's home nearby and was afraid that he may come looking for her.
He has no criminal record, the sheriff said. A suspect - 21-year-old Jake Thomas Patterson - is in custody and is due in court on Monday.
Another aunt, Sue Naiberg Allard, posted that Jayme got "the most awaited hug ever".
Closs was reunited with her aunt and the rest of her family.
"She is doing great", Barron County Sheriff Chris Fitzgerald told "Anderson Cooper Full Circle".
"Jayme was the hero in the case".
When deputies arrested him, he was out looking for Jayme, Fitzgerald said.