Savannah Guthrie has renewed her public appeal for information about her missing mother, Nancy Guthrie, after investigators released the full text of two ransom notes for the first time as the search for the 84-year-old approaches its six-month mark.
The 54-year-old Today presenter has been at the centre of an extensive search since Nancy was abducted from her home in Tucson, Arizona, on 1 February.
