Social media users have reported seeing lights on at Nancy Guthrie's Tucson home, sparking concerns over the missing woman's case.
Nancy, the mother of NBC host Savannah Guthrie, was last seen at her Catalina Foothills home on January 31 and reported missing on February 1.
Lauren Serpa claimed to have seen lights on in both the main house and a guest house at around 4 a.m. in a Facebook post, which was later repeated by other social media accounts.
However, authorities have not confirmed any developments in the case, and the authenticity of the footage could not be independently verified.
The Pima County Sheriff's Department and the FBI are still investigating tips and processing DNA evidence, but no suspect has been identified despite earlier ransom emails demanding Bitcoin and a $1 million reward offer.