India, June 7 -- Nancy Guthrie has been unaccounted for over four months, with no arrests made so far, despite a thorough search conducted by the FBI and the Pima County Sheriff's Department.

The 84-year-old mother of Today Show anchor Savannah Guthrie was last seen at her residence in Tucson, Arizona, on the evening of January 31. She was reported as missing the subsequent day after her absence from a church service.

Although no suspect has been identified at this time, and Nancy remains unfound, experts have been offering their insights regarding the investigation in an effort to comprehend the circumstances surrounding the disappearance of the woman.

Retired Modesto Police Department detective Jon Buehler, who was involved in the La...