Decatur police have not indicated what, if anything, they found after digging up part of a vacant lot.
But they have confirmed that the dig was part of a renewed investigation into the disappearance of a boy nearly 30 years ago.
That lot was once the site of a house owned by the aunt of TJ Davidson.
The four-year-old boy was reported missing by his aunt in 1985.
She said she had left him sleeping in a car at a shopping center and when she returned, he was gone.
Decatur police began looking more closely at the disappearance recently, after a complete review of the cold case file.