of the search for the 84-year-old. Fighting back tears, the NBC host said in an Instagram video that they are "aching" for Nancy Guthrie, who is suspected to have been abducted from her home in Tucson, Arizona. "We still believe in a miracle, we still believe that she can come home - hope against hope," said the presenter. "We also know that she may be lost, she may already be gone, she may have already gone home to the Lord that she loves." In the video released on Tuesday morning, Savannah Guthrie said her family would also donate $500,000 to the National Center for Missing and Exploited Children. She continued: "Please, if you hear this message, if you've been waiting and you haven't been sure, let this be your sign to please come forward. "Tell what you know, and help us bring our beloved mom home, so that we can either celebrate a glorious, miraculous homecoming or celebrate the beautiful, brave and courageous and noble life that she has lived." (BBC)