Article continues below advertisementFormer Pima County Undersheriff Rick Kastigar stated that Pima County Sheriff Chris Nanos is "not interested in other perspectives, or other opinions, or somebody trying to help him" regarding the investigation into the disappearance of Nancy Guthrie, the missing 84-year-old mother of Today show co-host Savannah Guthrie.Rick, who was previously Chris' supervisor for 37 years, criticized the sheriff's handling of the case, alleging that Chris' desire to handle the situation alone led to significant delays and missed opportunities.