to walk like that fugitive. >> he didn't just re-create the bust. he didn't just from an artistic standpoint, he studied it like a scientist. >> bender works with teams of specialized doctors and law enforcement officials to perfect john list's characteristics, right down to a scar that he had behind his right ear. >> like in the case of john list, i went to the university of pennsylvania and met with some of the top rhinoplasty surgeons in the country. and dr. bartlett told me how the mastoid operation was done back then and how the scar would look after, like, 18 to 20 years. so reaching out to different forensic experts like this, talking to other law enforcement people, part of that team work,