what to write. >> when you said, i could not i.d. the face of wayne williams as the man i saw with nathaniel cater, are those your words? >> those are words i was told to say. >> by? >> i'd rather not say. it might cause problems. >> could you i.d. the face of wayne williams? >> the person i saw holding nathaniel cater's hand was wayne williams, the man that was convicted of it. >> in fact, henry had passed a lie detector test before he took the witness stand. when his visitor came to see him, henry was serving five years for sex crimes. his false affidavit was used in court appeals. wayne williams lost each time anyway. >> to this day, is there any question in your mind whom you saw with cater? >> no, there's not. >> it was? >> wayne williams. >> robert henry is not the only