Pima County Sheriff Chris Nanos has revealed that after learning more about the scene of the crime, he concluded Savannah Guthrie's mom, Nancy Guthrie - who's been missing since Saturday night - is in danger. "We don't want anybody to lose hope," Nanos told Us Weekly exclusively on Monday, February 2. "But in the same sense, just as there's hope, there's also things that point to us that say, 'This lady's in danger.'" "It does have to do with what was described to us about the scene," he continued. "I've been doing this for 50 years. When something doesn't sit well, it doesn't sit well.