Key Highlights
- Nancy Guthrie, 84, has been missing for over a week from her home in Tucson, Arizona.
- Savannah Guthrie believes her mother is still alive and is seeking public help in the search.
- Two alleged ransom messages have been sent to media outlets, but proof of life has not been confirmed.
- A former FBI official has expressed skepticism regarding the kidnapping claims.
- Savannah described the current situation as an 'hour of desperation' in her video appeal.

