JUST IN: Savannah Guthrie releases new post on Instagram, tells her mother's kidnapper that it is "never too late to do the right thing." Guthrie says she believes in the "essential goodness of every human being." "We still have hope and we still believe, and I wanted to say to whoever has her or knows where she is, that it's never too late and you're not lost or alone, and it is never too late to do the right thing."