to police as being dark. >> yeah. >> reporter: the pressure is enormous, people are puzzled by clint bobo's of the abduction. at the time, tennessee bureau of investigation's terry dicus is heading up the case. >> there were a lot of people that felt very strongly clint was lying, and that clint telling the truth would be the secret to solving this case. >> reporter: did they tell you they thought your story was strange? >> it was just question, after question, after question. now, of course, they did check me. they said for scratches and so i took my shirt off. >> reporter: that was that morning she disappeared? >> yeah. yeah, that was that morning. >> reporter: suspicion was that quickly turned toward you? you were there. >> i was there, yeah. i was there and holly was not there. >> reporter: police search clint's computer, monitor his phone calls and polygraph him, twice. have you told everything you know about that morning? >> yes. >> that your sister disappeared? >> yes. i have told everything. >> reporter: what has it been like to lose one child and have the other child be the focus o