It has been over 100 days since 84-year-old Nancy Guthrie went missing from her Tucson residence, and officials report that they have 'nothing new' in the case.
Guthrie disappeared on February 1 from her affluent neighborhood in the Catalina Foothills, and despite a masked person being captured on doorbell footage at her front door, there are no publicly named suspects.
Outside volunteer groups, including the Louisiana-based United Cajun Navy and Madres Buscadoras de Sonora, have expressed interest in joining the search, but have received 'zero response' from authorities.
Pima County Sheriff Chris Nanos stated that investigators are making progress, but did not provide further details, while a private laboratory in Florida has sent DNA evidence to the FBI for analysis.