Investigators hope it solves the mystery of how the boy died.
The body of Titus Tackett was found in a minivan about a mile from his grandfather's house. His mom says she dropped him off at the house but when she returned, the door of the house was open and the boy was missing.
A search went on all Wednesday morning.
One rescuer described trying to revive the boy when his body was found but it was too late.
Police say it`s too soon to know if the boy wandered off on his own or if foul play was a factor.
Investigators say there are no obvious signs of foul play.