India, March 25 -- A former Pima County Sheriff's Department official believes that Nancy Guthrie 'somehow died'. Rick Kastigar, who used to be current sheriff Chris Nanos' boss, spoke to Brian Entin of NewsNation, as the search for the 84-year-old continues.

Guthrie, mother of TODAY show host Savannah Guthrie, was reported missing on February 1 and authorities said she was taken from her home in the Catalina Foothills near Tucson, Arizona, the night before. It has been over a month but she's yet to be found. Neither the Pima County Sheriff's Department, nor the FBI, who are assisting, have named any suspects in the case.

Amid this, Kastigar shared a chilling theory about what might have happened with Guthrie.

Kastigar noted that it wo...