for Nancy Guthrie w on its eighth day. Within the past hour, we've been seeing a lot of police activity at her home and just moments ago, a new update from the Pima County Sheriff's Department on social media saying the investigation is ongoing with follow-up continuing at multiple locations and no suspects, persons of interest or vehicles have been identified yet. Let's go right to MSNOW's Alex Tavitt, who's joining us from Tucson, Arizona, where he has been for quite some time following this story.Let's t ...