Today show host Savannah Guthrie's mother Nancy Guthrie has vanished from her Arizona home, and now neighbors are weighing in about the increasingly concerning and unsettling situation. Nancy, 84, is being described by those who know her as a constant presence on her street - someone woven into the daily rhythm of the neighborhood. That's part of what makes this disappearance so hard to comprehend. Related: Cops Fear Nancy Guthrie Was Abudcted As Neighbors Reveal What They Think Happened One neighbor, who lives on the same street, spoke to Us Weekly on Monday afternoon about that...