in a league by itself. >> dean -- >> dean faiello. >> you asked me who dean faiello is -- >> a construction worker. >> a very heavy cocaine user. >> which dean do you wanna know? >> they may have solved a missing person's case. investigators believe dean faiello fled new york city. >> the plot thickens. missing man, missing woman. >> dean faiello was my partner. >> i thought dean was my friend. >> he demolished friendships, trust. >> dean faiello was an alarmingly good-looking man. >> very handsome. he looks like a doctor on a soap opera. >> dean faiello is not a doctor. >> are you a doctor? >> yeah. >> dean faiello passed himself off as a dermatologist. >> he was a pathological liar. >> a narcissistic sociopath. >> the charisma of a cult leader. >> why would you be practicing medicine without a license, dean? >> he said he was a doctor? >> doctor. >> there's a lot of deans. >> he just left this huge trail of destruction. >> it is going to be an emotional day. >> it's a fascinating story. >> stand by. >> why have you decided to sit down and tell your story now? >>> new york city. it has an