The search for Nancy Guthrie has entered a new and puzzling phase, as federal investigators return to her quiet neighbourhood nearly a month and a half after she vanished.
On day 45 of the investigation, FBI agents have begun questioning neighbours again and are now asking detailed questions about construction crews working on nearby homes. The move signals that authorities are widening their search for answers and carefully retracing the events leading up to Guthrie's disappearance.
