Savannah Guthrie’s Missing Mom: Police Expert Details Overnight Moves (Exclusive)

As the search for Savannah Guthrie's mom, Nancy Guthrie, continues, Paul Mauro, a FOX News contributor and former NYPD inspector, sheds insight to ET's Denny Directo. Mauro breaks down why police detained, questioned and ultimately released Carlos Palazuelos on Monday night. He also analyzes the chilling doorbell footage of the suspect arriving at Nancy's home, whom he calls 'not a professional.' Mauro explains why he suspects the man acted alone.