Article continues below advertisementPodcaster Megyn Kelly exploded at Pima County Sheriff Chris Nanos for what she describes as a pattern of "conflicting" and "alarming" changes to his messaging regarding the investigation into the disappearance of Nancy Guthrie, the 84-year-old mother of Today show co-host Savannah Guthrie.According to Megyn's analysis in the Tuesday, March 17, episode of her podcast, "The Megyn Kelly Show," Chris has repeatedly shifted the official narrative on several key positions.