The 13-year-old boy reported missing four years ago and found behind a "false wall" in the suburban Atlanta home of his father and stepmother on Friday thanked police for helping him reunite with his mother, saying, "They found me, and they didn't give up on me,” NBC affiliate WESH reported. Gregory Jean Jr. had used a smartphone to contact his sister online, and she relayed the message to their mother, Clayton County police told NBC News. The boy's biological mother called police and tipped them off to where the boy might be. Investigators found the boy behind a wall at a Jonesboro home. Five people were charged in connection to the boy’s kidnapping, including his father, Gregory Jean Sr., 37, and his stepmother, Samantha Davis, 42.