dateline. a young mother disappeared one her husband said she went for a run and never came home. the puzzling case happened in a safe, suburban neighborhood where crime is unexpected. but sometimes there are secrets hidden behind closed it all seemed like such a bad this doesn t happen in our happy little world. reporter: it was a saturday morning in july. the happy little world suburb of raleigh, north carolina, called cary, a place where a young family would aspire to if you were someone like hanna pritchard, for example. there s always lots of friend making going on through someone you meet. lots of cookouts and family functions. reporter: like the one in the neighborhood the night before. so hanna would have heard party stories that saturday morning from her friend nancy cooper. would because nancy didn t show up. i hadn t heard from her maybe by like 10:00, i called her house. brad answered and he said, she went for a run. reporter: nancy was an athlete, tra
the fifth it was almost as if there was a witness in this case. you knew there was a mystery man out there. there was someone else involved. i couldn t sleep, i couldn t eat. who s side do you believe? this is getting really scary. green bay was constant, home of the legendary packers. a place where folks love their sunday football, and a great knock down on lambeau field. but in 2018, after the football season and ended. the city had became transfixed by a new battle of sorts. one that played out, not on the grid iron. instead, in a courtroom. a murder case where nothing was as it seemed. a who done it, featuring of all things, a fitness tracker as an intriguing clue. with two opposing sides, pointing fingers at each other. and one, gavel reveling twist. at the heart of it all, a beautiful 31-year-old mother, named nikki vendor heighten. my first encounter with nikki was at a cookout, and i just remember being like, okay, this girl, she s definitely my type of