Article continues below advertisementChilling new footage revealed disturbing evidence in a new development in the abduction case of Savannah Guthrie's mother, Nancy Guthrie.CBS National Correspondent Andres Gutierrez shared a new video of a trail of blood leading away from the front door in a video posted on Tuesday, February 3. Article continues below advertisementSource: @cbsnews/InstagramA trail of blood was seen in chilling new footage.