India, April 18 -- More than 11 weeks after 84-year-old mother of Savannah Guthrie, Nancy Guthrie disappeared from her Tucson, Arizona home, investigators have sent DNA evidence, including hair samples to the FBI for more advanced testing, as the search for answers continues.

In a statement posted on X on April 16, the sheriff's department said:

"PCSD has worked with the FBI since the beginning of the Guthrie investigation. This is not new information. 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."

The statement came after reporting by NewsNation correspondent Brian Entin, who wrote on X that some DNA evidence, including hairs...