Tracy Smith and "48 Hours" investigate the murder of a Colorado mother of three, a dancer who was thought to have gone for a walk during a blizzard, and was later found dead in a nearby river in "The Blue River Murder," to be broadcast Saturday March 8 at 10 p.m. ET/PT on CBS.
The police investigation into the death of Stephanie Roller revealed surprises: a marriage on the brink of collapse, an emotional affair, a woman concerned for her safety, and who may have known the name of her killer.
Friends of the couple found the story of Stephanie's walk a bit strange. The police had questions, too.
"Each day that we looked into Stephanie's life we learned many things," Silverthorne, Colo., Police Det. Theresa Barger says. "We learned that Stephanie had secrets. She was very scared. She was scared for her life."
Video: watch a sneak peek