have something here you're going to want to see. and we were pretty much focused on what we were doing at that time. we kind of said, hey, just hold off, wait a minute let us finish what we're doing. and she put her foot down and she said you're going to want tosy this right now. so we stopped and she handed me the lab sheet. and it was confirmation of dna. >> it was a match to the unknown male dna on chelsea's costume. it was not the guy in the party video. it wasn't any of the men they'd been looking at. they had cleared them all, including big mike. no, this was someone else, someone new. >> daniel clay. >> had you ever heard of daniel clay before? >> never. >> he never came up at all? >> not in this case. >> who was daniel clay? >> he's a guy who lives in a rural county and doupt really have a permanent address, flops