scoop on the suspect? and he said, no, that's my son. i thought, oh, geez. homer told him. >> they detained him and impounded my car for littering. they detained him for littering is what he said. i said that doesn't sound right. he said, at night. i said littering? he said, yeah, he was driving over this bridge and stopped to throw some garbage and they rushed him and stopped him. at that point i said, homer, i don't think you need to talk to me anymore. >> we asked wayne williams about throwing garbage off the bridge. he denied his father ever said that. your father said you stopped to get rid of some trash. >> no, he -- my father never said that. i never said that and my father never said it. >> while father and son were inside the fbi, evidence technicians were combing the williams home. the fbi's top fiber expert, harold dedman, led the search. in wayne's bedroom he took