Jump to contentThank you for registeringPlease refresh the page or navigate to another page on the site to be automatically logged inPlease refresh your browser to be logged inAllNewsSportCultureLifestyleA banner with a growing collection of well-wishes from supporters reads "bring her home" (not pictured) and shows a photo of Nancy Guthrie, (Reuters)The search for Nancy Guthrie, mother of NBC News host Savannah Guthrie, has suffered a setback after a hair found at her home yielded no new DNA evidence. Nancy Guthrie, 84, disappeared from her Tucson, Arizona, home on February 1, marking six months since her disappearance this Saturday. Pima County Sheriff Chris Nanos stated that a hair sample sent to a specialist lab in California came back with no DNA, though it may still prove valuable for other investigative purposes. Investigators believe Nancy was taken against her will, based on blood found near her home and surveillance footage showing a masked individual near the property. Savannah Guthrie made a fresh appeal on Instagram, urging her mother's abductor to 'do the right thing' and help locate her, while authorities have not confirmed a reported ransom note claiming Nancy's death. In fullNancy Guthrie investigation suffers another blow ahead of six month anniversary of her disappearanceMore bulletinsThank you for registeringPlease refresh the page or navigate to another page on the site to be automatically logged inPlease refresh your browser to be logged in

Authorities continue investigating Nancy Guthrie's six-month-old disappearance from her Tucson home. Sheriff Chris Nanos expressed optimism about resolving the high-profile case…

Pima County Sheriff Chris Nanos has spoken about hair found at the home of NBC News host Savannah Guthrie’s missing mom