Young indicated that the people of Roseburg have been very supportive of her efforts to create awareness of the investigation and the search for her 8-year-old son, thanking them on air. But her direct statement to the boy's stepmother stayed on point.
"To Terri I have a different message -- I will be here each and every day to remind you of what you've done, remind you of Kyron, and make sure that you are brought to justice," she said firmly.
Bruce McCain, the former captain of Multnomah County Sheriff's Department, which spearheaded the search for the boy, told "GMA" it is a sad sign of the difficulty of the case that Young felt she had to escalate her efforts to find out what happened to her son.
"This is by far the most dramatic step she's taken," McCain said. "But the fact that a biological mother now has to take matters into her own hands again is a reflection on the status of the investigation.
"There is no bloody foot prints, no torn 'CSI' shirt, no broken eyeglasses -- so this investigation really has had a severe lack of physical evidence from the very beginning," he added.
Horman was previously the target of strong words from Young during an interview with "Good Morning America" in late August.
"You will go to jail, and whoever has been helping you, if they don't talk, they will go to jail," Young said. "I really believe that you want to do the right thing here and bring Kyron home."
Terri Horman's lawyer, Stephen Houze, has said that his client had received death threats and that the media frenzy surrounding the case had morphed into a "witch hunt."
Anyone with information regarding Kyron Horman's whereabouts is asked to call the Multnomah County Sheriff's Office tip line 503 261-2847.