Expert points to early stumbles in probe of Savannah Guthrie’s missing mom

Veteran investigator Joseph Moura, who has worked with 48 Hours, details the mistakes made during the investigation into the kidnapping of Nancy Guthrie. The FBI recently released Nest video from Guthrie’s home showing her suspected kidnapper wearing a ski mask and tampering with the camera. Moura sheds light on what the newly released video could...