Polygraphs in Nancy Guthrie case — how they could be narrowing the search to find a suspect

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Taking care of your health just got easier, thanks to my sponsor Zocdoc — start here at: https://zocdoc.com/brianentin It has been four months since Nancy Guthrie vanished from her Tucson, Arizona home. In this episode of Brian Entin Investigates, Brian rebuffs some reports that detectives are getting closer to a suspect name. Also, renowned detective Jon Buehler examines the case and explains how polygraphs work and why they could be critical in narrowing down the search for who is responsible. Don’t forget to follow me on your favorite podcast app! Head to: https://bit.ly/brianentininvestigates Follow Brian Entin on Social Media: TikTok: / brianentin X: https://x.com/BrianEntin Instagram: / brianentin