Nancy Guthrie, the mother of Today Show host Savannah Guthrie, remains missing as authorities push deeper into a multi-agency investigation involving the FBI, local law enforcement and border authorities. Surveillance footage recovered from a doorbell camera has become a central piece of evidence in the case. The video reportedly shows a masked, armed individual outside Nancy Guthrie’s home on the night of her disappearance, a development that has significantly escalated the investigation. Engineers recovered the footage days later, and federal officials have confirmed it is now part of an active FBI probe. WATCH