Brian Michael Rini of Medina, Ohio, was charged with lying to federal agents after he appeared looking confused in Newport, Kentucky, outside Cincinnati on Wednesday and claimed he was 14-year-old Pitzen, federal officials said.
Brian Michael Rini, 23, of Medina, was charged in US District Court for the Southern District of OH and ordered held without bond, prosecutor Ben Glassman said.
It's not yet clear what charges Rini could face.
But the Federal Bureau of Investigation said DNA testing proved his story false, dashing hopes that the baffling disappearance of Timmothy had finally been solved. The FBI concluded Rini's DNA was not a match for Pitzen. It says he served nearly 14 months of an 18-month sentence for burglary and vandalism.
Jonathon Rini, the suspect's brother, told reporters Thursday that he hopes his sibling goes to prison, or some sort of institution.
"When questioned further, Rini stated that he wished he had a father like Timmothy's because if he went missing, his father would just keep drinking", the complaint said.
Rini finally acknowledged his identity after being confronted with the DNA results, said he had watched a story about Timmothy on TV, and had wanted to get away from his family, according to Ms Braun. "It is not OK because it causes pain to the missing child's family".More news: Brexit: Jeremy Corbyn and Theresa May hold 'constructive' talks
Police have said she might have dropped the boy off with a friend, noting that his vehicle seat and Spider-Man backpack were gone.
In his home town of Aurora, Illinois, Police Sergeant Bill Rowley said that over the years his department has received thousands of tips about Timmothy, including false sightings. People who spoke with Rini before authorities arrived told CNN that he said he was anxious and needed help.
"Law enforcement has not and will not forget Timmothy, and we hope to one day reunite him with his family".
"It's devastating. It's like reliving that day all over again", Kara Jacobs, Timmothy's aunt, said. Jonathan Rini said he hasn't talked to his brother in years but worries that he's off the medicine he's prescribed for a range of mental health issues. "It's the day I dropped him off at school and he's off - running off to class - and that's pretty much the last image I have in my mind of him", Timmothy's father, Jim Pitzen, told CNN in 2015.
But after the person was identified as Rini, Anderson said the whole ordeal was "awful".
Three days later, she was found dead in a motel room from an apparent suicide. She held out hope that if he's "in a place where he has communication with the media or a computer, that he'll remember us enough to look for us, and I think he will".
Almost eight years ago, Timmothy and his mother went on a road trip that included stops at a zoo and a water park. However, his mother had left behind notes saying the boy was safe with loved ones but would never be found.