FBI agents canvass homes near Nancy Guthrie's home in Tucson, Friday, Feb. 6, 2026. Guthrie was last seen on Saturday night as an investigation into her disappearance continues. (L) A portrait of Nancy Guthrie and Savannah Guthrie shown in a photo provided by NBC. (Kat Ramirez for Fox News Digital; Courtesy of NBC) NEW You can now listen to Fox News articles! LONE PREDATOR: Nancy Guthrie's front door blood evidence points to ‘single abductor’ : former FBI profiler TEAM FRACTURES: Kohberger