. >> was it brandon biel? the funeral, they were sure. >> we definitely thought brandon did it. >> everything pointed to him. >> and then, as mourners filed by to pay their respects suddenly, where he was at the funeral. in front of them. brandon biel. did you think, my god her killer has come to the funeral? >> oh, he came in and shook my hand. i got up and my knees just felt weak and i fell. >> then said amber's mother, she was sure she saw brandon walk right up to the casket and put something into it. >> he put one of the gamestop tag holders that had their i. d. on it. he put one of those in her casket and i got that thing out of there as fast as i could and put it in a tissue and put it in my purse. because i thought, that's the last thing i want buried with my daughter. >> was that i. d. potential evidence, she wondered? was brandon trying to bury evidence with amber's body. >> so we are already thinking brandon did it. >> a week after, detective roberts question brandon on videotape. >> i'm going back ov