My sister's grave

Seattle police officer Tracy Crosswhite lost her sister Sarah over 20 years ago, and she has never forgiven herself. With no corpse discovered, there was still enough evidence to convict the man thought responsible for Sarah's disappearance. Now a body has been found and Tracy learns the remains are of her sister. Tracy has had her doubts about the guilt of the man behind bars, and she's absolutely sure there is a murderer still loose.