dna. did you think anything of that? >> no. i had no rhyme, no reason to be scared. >> then, not a word. for months, until, you'll recall, january of 1997, when tapp was brought in for questioning, after his friend ben hobbs was arrested for a nevada sexual attack, which police said was similar to the murder of angie dodge. >> i didn't know what i was being brought in for. >> you didn't connect it with the angie thing at all? >> no. i honestly thought i was going in for drugs. >> as you've seen over the course of several weeks, chris tapp soon went from saying he knew nothing about angie's murder, to being the only man charged in the case, just as his mother warned him. >> how was your mother during all this? >> frantic. i was honest with her. i said i had nothing to do with this, mom. i tried to explain to her. i didn't really confess. it took days to get to a story where i actually made a