. >>> i am craig melton. this is dateline.

. >>> i am craig melton. this is dateline. >> i would tell her how much i miss her and then i love her. she is the reason why i am who i am today. i will tell her thank you. >> laurent, a law school graduate with the world at her feet. >> fiercely intelligent. >> fierce with her opinion. >> it was strange when she dropped out of sight. >> she did not take her car or purse. there was something wrong. >> they could not have guessed how wrong. >> there was another level of evil, the person that did this with trying to create a vanishing. >> the first person you look at is somebody close to her romantically or geographically. >> icboyfriend, a ex-boyfriend, fellow students, would somebody study more than just text books? smart maybe but had he slipped up? >> what they found told us everything we needed to know. >> a confounding case that would come down to a damning piece of video that nobody was supposed to siu. >> sick and twisted. >> i knew we had him. . >> hello and welcome to dateline. lauren moved south for