conduct but no action was taken. in fact he s now the local district attorney. does this case haunt you at all? no. you haven t lost a night s sleep over this? no. he did it. reporter: he claims the nicole tapes were given to the defense team before trial. he sales he never received the williams tapes from the police either. regardless, he says in his mind, sozerstein was guilty. to this day i think we turned over the nicole tapes. but did it really change the verdict? this isn t dna evidence. the appellate court disagrees with mr. cline and i do and i think any reasonable person would. the missing tapes would have been devastating what was your mother s name? julie. reporter: we played the tapes for the man that served as jury foreman at the trial 20 years ago. he says he s not sure the jury would have changed its verdict but if mark was still alive, we d