river. >> the high and low search across the eerily beautiful pollutes country, for any search of rachel anderson was turning up. nothing months after her disappearance, detectives were convinced they had identified their prime persons of interest. rachel's estranged husband charles, and his churchgoing buddy david stone. but the investigation had stalled and was at a parent dead and. no secret what's the biggest obstacle was four lead investigators captain dan hally and detective jackie nichols. >> it's an axiom in law enforcement nobody, no crime. >> at this point we don't even know we have a death. we believe that in our gut. >> as the cops dug deeper into the background of the husband's friend david stone, the case suddenly became way more complex. a mind-blowing theory. maybe this wasn't just about one wife, rachel, maybe it was about to. the investigation had led them to the city maintenance yard were stone worked. fellow employee there had related a conversation he'd had with david stone a while. back >> is surfaces that there had been some conversations between david stone and this indivi

. >> rachel anderson had one great passion. >> she would've had a child every year if she could.