India, Feb. 9 -- Nancy Guthrie, the 84-year-old mother of Today show host Savannah Guthrie, has been missing for more than a week, sparking a growing investigation that has taken several troubling turns. Authorities in Arizona believe Nancy Guthrie was abducted from her Tucson home while she was asleep, a development that has raised serious concerns about her safety.

Nancy Guthrie Disappearance: Investigation Begins and Concerns Grow As the search intensified, multiple media outlets reported receiving ransom letters, with at least one note allegedly demanding $6 million and setting two deadlines Thursday evening and Monday evening. While investigators have not confirmed the authenticity of these messages, they stated that every tip is be...