Pima County Sheriff Chris Nanos (left) Jan Sonnenmair/Getty Images Pima County Sheriff Chris Nanos is hitting back at claims that he is blocking the FBI from accessing key evidence in the search for Savannah Guthrie's missing mom, Nancy Guthrie. In an interview with NBC Tucson affiliate KVOA on Thursday, February 12, Nanos said the allegations were "not even close to the truth." Earlier on Thursday, both Reuters and NewsNation reported frustration among federal agents over the handling of evidence, including a glove found inside Nancy's home.