TUCSON, Ariz. (AP) — The investigation into the apparent kidnapping of Nancy Guthrie has escalated as the deadline set by her alleged abductors looms. Authorities returned to her Tucson neighborhood multiple times over the weekend after ransom notes were delivered, demanding monetary payment for her safe return.

As the investigation enters its second week, concerns mount about the well-being of the 84-year-old, who is the mother of NBC’s “Today” show anchor, Savannah Guthrie. The family has expressed its willingness to pay in hopes of celebrating her return. In a heartfelt video plea, Savannah Guthrie implored the abductors to release her mother, stating, We beg you now to return our mother to us.

The incident has captivated the U.S. public, drawing the attention of high-profile figures including former President Donald Trump. Citizens have taken to social media, sharing tips and theories about the case.

Onlookers in Nancy Guthrie's neighborhood are left anxious as the Pima County Sheriff’s Department conducts follow-up investigations. Despite intensive efforts, no suspects or vehicles have been linked to the case as of yet. Investigators confirmed the discovery of blood matching Nancy's DNA on her porch, adding to the urgency of the investigation.

Ransom letters reportedly indicate strict deadlines for payment, with law enforcement urging caution and thorough investigation into their authenticity. Concerns regarding Nancy's health escalate daily, as she relies on medication for existing health conditions, including a pacemaker, high blood pressure, and heart issues.