Pedro and Onil Castro are trying to put as much daylight between them and brother Ariel Castro as possible, telling CNN in an exclusive interview that they worry they'll be linked to his alleged crimes, that they're in hiding along with their mother, and that they face rocks thrown through windows and online death threats. "I couldn't never think of doing anything like that," says Pedro Castro. "If I knew that my brother was doing this ... I would call the cops because that ain't right. If I knew, I would have reported it, brother or no brother." The complete interview is set to air tomorrow.