well. >> the moment they take the dna sample, daniel wozniak thought he was going home. hey, that was easy. >> he thinks it's over. he thinks he's done his job, convinced the cops. >> standing ovation with the audience. he has just done the performance of his life. wedding on and he's gonna go have an awesome honeymoon. >> but the cops say not so fast. >> you're being up front with us, you're being honest. there should be no reason why we should find your dna anywhere in certain areas and stuff like that, and that's why -- that's why we're doing it. >> you can kind of see dan registering that, oh, i might have to explain why my dna was found in sam's apartment. >> dan scrambles and offers up an explanation of his own. >> now i was in sam's apartment friday afternoon. >> okay. >> and i know i did use the bathroom. >> you did use the bathroom. >> i used the bathroom, and i went -- i'm not sure if i went on the patio or not. >> where's that dna going to be showing up? >> in sam's car. >> what about on julie? >> no, it wouldn't be on julie. >> did you see julie dead in the ap