In August of 1976, a 24-year-old Lewiston mother vanished. For years, Patty Otto's daughters were told she left voluntarily, despite her youngest recalling vivid memories of a violent fight that night between her parents. Patty's husband was arrested shortly after she disappeared, accused of trying to coordinate the murder of an LPD investigator looking into the case. He was never charged with harming his wife. Patty's daughter is on a mission to find out the truth. Could a 1978 discovery in Oregon be the key to solving this case? KHQ talks in depth about the case's twists and turns with Patty's daughter who refuses to ever give up her fight for answers.