
Detectives and forensic experts recount the most extraordinary cold cases that were solved using the revolutionary technique of familial DNA testing.
In 2010, Sherry Black is found stabbed to death in her bookstore in Salt Lake City, Utah.
In 1979, Kim Bryant's body is discovered in the Las Vegas desert; it takes law enforcement 40 years to name her killer.
Carla Walker is raped and killed on Valentine's Day, 1974, leading to a cold case that takes 46 years to crack.
Police solve the decades-old cold case of Clare Holman through new advancements in DNA technology.