emotional wilderness, 07-08-09, what was your lowest moment? >> there are so many little ones. i didn't want to live. just cried my head off every day, and... i just didn't want to live. >> years went by, david pietz quietly left the fitness industry for a position at chase bank. he started attending church. fellow church member, kim adams, said she got to know a dave who was very different from the heartless philanderer described by nikki's friends and family. the dave kim knew was a forlorned widow who spoke fondly about his lost wife. >> when he would speak of her, i could see a sadness and him. who would have conversations about, you know, struggling because he missed her. >> meanwhile, at the county sheriff's office, the three ringed binders that made up the pietz moved from dusk to dusk until in 2010, they were picked up by two cold case cops.