Australian-born presenter, Savannah Guthrie poses alongside her mother Nancy Guthrie during a production break whilst hosting NBC's "Today Show" live from Australia. (Photo by Don Arnold/WireImage) NEW You can now listen to Fox News articles! SHADOW AT THE DOOR: Nancy Guthrie case: 5 key evidence pieces so far BAG OF CLUES: Walmart sales records become critical evidence as FBI investigates Nancy Guthrie's disappearance WRONG GEAR: Former FBI agent calls holster setup in Nancy Guthrie case '