The teen went missing in 2010 while visiting his father in Florida, it was then, his mother had apparently reported the matter to child welfare authorities, but not to police.
"The father Gregory Jean (37), stepmother Samantha Joy Davis (42), and three others were charged with obstruction, false imprisonment and cruelty to children," said the Clayton County police in Atlanta, Georgia.
"On initial investigation, we could not locate the boy but several hours later, on coming back and again searching the residence we discovered him hidden behind a false wall hidden by towels ," Police Sergeant KT Hughes said.
The apparent hiding space was above the garage of the home, Huges said.
Also Read
On questioning neighbours they said the boy was always seen working in the yard, and that he was home-schooled, a local TV channel WXIA reported.
Both Jean and Davis could face more of criminal charges when the investigation unfolds.