Blood Runs Cold

The loss of a loved one is devastating, but when the crime goes unsolved and the perpetrator unpunished, the grief is compounded as closure remains unattainable. Blood Runs Cold tells astonishing stories of individuals who went to unimaginable lengths to uncover the truth and to bring justice for heinous crimes that have long since gone cold. These are cases of murder and disappearance that took years, if not decades, to solve. But thanks to the perseverance of loved ones who vowed never to give up whatever the cost hard justice is ultimately won. (Discovery Networks)