Nancy Guthrie update: Sheriff Chris Nanos defends slow pace of probe as FBI tests DNA; ‘science has rules’

How DNA labs made Nancy Guthrie’s case 'difficult' and 'sensitive' despite intense probe by authorities? Pima County sheriff shares latest…

The investigation into Nancy Guthrie's disappearance continues. Sheriff Nanos highlighted the importance of DNA analysis and strict lab protocols. Authorities are working with…

Will the Nancy Guthrie case finally be cracked? Here's what an expert says about the next the FBI move that could expose the suspect