Authorities investigating the disappearance of Nancy Guthrie say they are getting closer to answers nearly 100 days after the 84-year-old vanished from her Arizona home, Wonderwall.com can reveal. The update from Pima County Sheriff Chris Nanos comes as prominent criminal profilers shared disturbing new theories suggesting the suspect may have specifically targeted the mother of Today co-host Savannah Guthrie. Sheriff Says Investigators Are Making 'Really Great' Progress Nancy vanished from her Tucson-area home during the early morning hours of February 1.