This article covers the investigation into the suspected kidnapping of Nancy Guthrie, the 84-year-old mother of TV news anchor Savannah Guthrie. Police in Arizona confirmed that blood found in Guthrie's home belongs to her, though they currently have no suspects. Investigators are looking into a ransom note that set a deadline for Thursday. Meanwhile, a separate, fake ransom note has already led to one arrest. Authorities believe Nancy Guthrie is still alive and missing. Her family has made a public plea for any proof that she is safe and for her return home.