The 84-year-old mother of "Today" host Savannah Guthrie is believed to have been taken against her will from her Tucson, Ariz., home in the early morning hours of Feb. 1 Don Arnold/WireImage; FBI Phoenix/X Federal investigators are using new technology to ...

The FBI has uncovered a possible new lead in the search for Nancy Guthrie, the mother of Todayanchor Savannah Guthrie. DNA evidence, including hair, has been recovered from Guthrie's Tuscon, Ariz. home, and has been sent for analysis, per a Thursday ABC ...

PIMA COUNTY, Ariz. -- The FBI recently received and is now analyzing potentially critical DNA recovered months ago from the Tucson, Arizona, home of Nancy Guthrie, sources familiar with the investigation told ABC News. Nancy Guthrie, the 84-year-old mother ...

A strand of DNA recovered from Nancy Guthrie’s Arizona home is undergoing extensive testing at the FBI’s crime lab as the investigation hit the 100-day mark — and authorities continue to hold out hope for a break in the case.

The FBI has received DNA evidence recovered from the Tucson, Arizona, home of Nancy Guthrie, including test results from a hair sample, sources familiar with the investigation told Fox News Digital. A source with knowledge of the investigation confirmed ...

The FBI is now utilizing new technology to conduct advanced analysis on the DNA sample.

The FBI is analysing a single unidentified strand of hair recovered from the bedroom of missing Arizona mum Nancy Guthrie, as experts warn that the digital and DNA work now at the heart of the 84‑year‑old's case in Pima County could take months,