Disappeared
The director Jill Morley is interviewed in this episode of Disappeared - Dancing into Darkness:
http://www.youtube.com/watch?v=0Jz02E-xTY8
One of the girls she followed in the documentary, Susan Walsh, a Jersey mom, disappeared after complaining of a stalker harassing her. There is some speculation that she was the target of an organized crime hit. She left an 11-year-old son behind.
http://unsolvedmysteries.wikia.com/wiki/Susan_Walsh
http://icaremissingpersonscoldcases.yuku.com/topic/1249