Savannah Guthrie is holding onto hope. On Sunday, the Today show host took to social media to issue a hopeful message as the search for her mom Nancy enters its seventh week. First shared by Today on Saturday, the Guthrie family statement reads: "We are deeply grateful for the outpouring from neighbors, friends and the people of Tucson. We are all family now. We continue to believe it is Tucsonans, and the greater southern Arizona community, that hold the key to finding resolution in this case. Someone knows something.