Nancy Guthrie Update Today: Expert Makes Bold Call on Investigation

As the search for Nancy Guthrie stretches past the one-month mark with no suspects identified, a prominent forensic scientist is calling for a fresh approach — and he's confident the evidence to crack this case is still out there.

Peter Valentin, chair of the Forensic Science Department at the University of New Haven's Henry C. Lee College of Criminal Justice and Forensic Sciences, appeared Friday on Fox News' Crime and Justice podcast with Donna Rotunno to share his assessment of where the investigation stands...