Cold

About a year after Susan Cox Powell disappeared from her home in West Valley City, Utah, a man entered a mom-and-pop bookstore one town over and stabbed the owner of the shop to death. The November, 2010 murder of Sherry Black was an inverse of the Susan Powell case: a body and physical evidence, but no suspect. It took police a decade before investigative genetic genealogy led them to Sherry Black's killer. That man is now in prison for life. Black's daughter, Heidi Miller, spent a decade of her life trapped in a stage of suspended grief. Heidi didn't know who killed her mom, or why. In the midst of that uncertainty, Heidi created a non-profit organization, the Sherry Black Foundation, to try and create something positive out of her tragedy. On September 26, 2026, the Sherry Black Foundation will co-host the inaugural Utah Missing and Unsolved Day, bringing together investigators, victim families and service providers. The goal is to make sure no cold case goes uninvestigated, no murdered or missing loved on