Nancy Guthrie's neighbors can't believe their longtime friend has vanished without a trace. "Nancy is a longtime neighbor and dear friend and we are all worried about her," a neighbor close to Guthrie, 84, exclusively shared with Us Weekly on Monday, February 2. "We live on the same street. [We are] in complete shock and very concerned." News broke on Sunday, February 1, that NBC anchor Savannah Guthrie's mom went missing in Arizona. At the time, Pima County Sheriff Chris Nanos called the situation "very concerning," noting that the authorities aren't ruling out foul play just yet.