Authorities have issued a telling statement amid the ongoing investigation into the disappearance of Nancy Guthrie, the 84-year-old mother of Today star Savannah Guthrie. The Pima County Sheriff’s Department, which holds its headquarters in Nancy’s hometown of Tucson, Arizona, shared a post on X on Thursday night clarifying a major new update in the case. Recent reports revealed that the department was working closely with a lab in Florida to conduct DNA testing on samples taken from Nancy’s home, and that the lab was now sending their samples to the FBI for further testing with new technology.  “PCSD has worked with the FBI since the beginning of the Guthrie investigation. This is not new information,” the department’s post read. “The private lab we utilize in Florida continues to share information with the FBI lab & other partner labs across the country. DNA analysis remains ongoing.”  Authorities issued a statement regarding Nancy’s disappearance on Thursday The telling statement reflects the department’s apparent frustration with the noise surrounding the investigation, as they felt the need to clarify their process. …