attempted cover-up. >> i was looking at the license plate and i see that it's not there. there should be a california license plate. it's not there. >> you think. >> it's gone. >> and i also see that there is one screw missing and one screw screwed back in half way. and that screw came back positive dna to john creech. >> bingo. the unassailable link to pull together all that evidence. phone records, chandy's testimony, the friends, the dna, and it all condemned john creech. but the surprise was coming for everyone. >> raise your right hand. >> coming up -- >> i was scared for my life. >> a dramatic tale from the stand. >> he punched me, pulled me in by the sweater and choking me. >> who attacked who? and who would the jury believe? >> my skin was just crawling. >> when "dateline" continues. t g >> when "dateline" continues man: sneezes skip to the good part with alka-seltzer plus.