hello and welcome to "dateline this story involves a young mother who disappeared one morning. her husband said she went for a run and never came home. was a puzzling case that happened in a safe suburban neighborhood, the kind of place where crime is unexpected. even more unexpected, the tiny here's keith morrison. >> nothing about that morning made any sense. >> it all seemed like just such a bad nightmare. this doesn't happen in our happy little world. >> it was a saturday morning in july 2008. the happy little world, a sweet and livy suburb of raleigh, north carolina. a place a young family would aspire to. if you were someone like hannah pritchard, for example. >> there's always lots of friend-making going on through someone you meet.