Authorities said Thursday that the "teenager" claiming to be Timmothy Pitzen, the IL boy who went missing in 2011 at age 6, is actually a 23-year-old man.
The FBI said that federal "law enforcement has not and will not forget Timmothy, and we hope to one day reunite him with his family".
A 14-year-old boy told police in Newport, Kentucky, on Wednesday that he escaped two kidnappers in the Cincinnati area and ran across a bridge.
As of Thursday evening, charges had not been filed against Rini for orchestrating the hoax.
Authorities have rejected a teenager's claim that he is an IL boy who disappeared in 2011 at age 6.
Wednesday's development was viewed as a potentially major breakthrough in the case of Pitzen, who was last seen on Thursday, May 12, 2011. He was said to have crossed state lines from OH into Kentucky where he was found around 7:30 a.m. Wednesday and where he told witnesses had been on the run for two hours.
The boy who spoke to authorities described the two men as white males with body builder-type figures.
Pitzen's grandmother, Alana Anderson, says the family has endured so much heartbreak but never gave up hope. "Unfortunately, that day will not be today".
Timmothy's family members said they were heartbroken at the latest twist.
After Wednesday's developments, Aurora police sent two detectives to check out the teenager's story, and the Federal Bureau of Investigation was also investigating.More news: Experts warn US-Mexico border closure would close auto industry
The grandmother of an IL boy missing since 2011 says she's trying not to get her hopes up after hearing that he might be alive. "He lived in IL that's what he told me and he just was passed around to people that he didn't know", she said.
She said the person looked scared and cold and he had bruises on his face. The boy was taken to a hospital, but no information was released. He said one man has black curly hair, a spider web tattoo on his neck, and was was wearing a Mountain Dew shirt and jeans. "The other was short in stature and had a snake tattoo on his arms".
Rini told police he was staying with the alleged kidnappers in a Red Roof Inn, but he didn't know where it was located.
"It created a renewed awareness in the case", said Sgt. Bill Rowley, Aurora police spokesperson. "It's got people thinking about the case again and perhaps looking at the case with new eyes".
"I just can't imagine what he's been going through", said Troy Murphey, Pitzen's high school classmate, before the news of the hoax.
The two apparently visited Brookfield Zoo two days earlier and checked into the Key Lime Cove Resort in Gurnee on May 11, 2011. He said his name was Timmothy Pitzen. However, his mother had left behind notes saying the boy was safe with loved ones but would never be found.
At the time of the boy's disappearance, police searched for him in Illinois, Wisconsin and Iowa.
Timmothy was last seen after his mother pulled him out of school in Aurora, Illinois, a far-west suburb of Chicago, and then committed suicide.
Louisville officials said anyone with genuine information about the case is asked to call the APD at 630-256-5000 or the NCMEC at 1-800-THE-LOST (1-800-843-5678).