(CNN) DNA tests revealed that an Ohio man who claimed he broke free from kidnappers after nearly eight years in captivity is not Timmothy Pitzen, the FBI said Thursday.

Brian Michael Rini, 23, of Medina, Ohio, said Wednesday he was the missing child from Aurora, Illinois, and described how he fled from his alleged kidnappers and ran across a bridge into Kentucky, authorities said.

The news dashed hopes that the person found wandering a Newport neighborhood was the missing boy, who would now be 14.

"It's devastating. It's like reliving that day all over again," Kara Jacobs, Timmothy's aunt, told reporters. "Timmothy's father is devastated once again."

"As are we," said Timmothy's grandmother, Alana Anderson.

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