Do You Know What Happened to Your Daughter?

Police had not found physical evidence that indicated Jim Matthews had something to do with Janelle's disappearance. None of his boots matched those raked footprints in the snow, but that didn't rule him out as a person of interest. The FBI thought a lie detector test might provide some clarity and asked Jim Matthews to take one. So he did and failed it: "Do you know what happened to your daughter?"