NBC News anchor Savannah Guthrie made a tearful plea to kidnappers in a social media video, demanding proof that her 84-year-old mother, Nancy Guthrie, is still alive. She emphasized her mother’s fragile health and need for medication, while authorities confirmed the kidnapping from her Arizona home. US President Donald Trump has pledged full federal support to secure Nancy’s safe return, as the family works tirelessly to resolve the situation.