Jack Deveraux was the adopted son of Harper Deveraux. Harper was a U.S. Senator, and Jack was an aspiring politician, but it was revealed that Harper was a sociopathic killer. At one point, Jack was a suspect for the killings in town, and it seemed that his father was actually trying to frame him. Unbeknownst to Jack, he was really Billy Johnson, Jo Johnson's son and Steve Johnson's baby brother. Jo had given up her boys for adoption when she feared that her abusive husband Duke would kill them. Young Steve Johnson watched helplessly as his baby brother Billy was adopted and taken from him.