Nancy Guthrie case: Pima County Sheriff Chris Nanos states investigators are keeping details about Nancy Guthrie's disappearance secret to protect the case. Khloe Kardashian has voiced concerns about the lack of public leads. DNA analysis is progressing slowly. Authorities believe an arrest will be made eventually. The FBI is involved in the ongoing investigation.

Nancy Guthrie case: Pima County Sheriff Chris Nanos states investigators are keeping details about Nancy Guthrie's disappearance secret to protect the case. Khloe Kardashian has…

Pima County Sheriff Chris Nanos opened up about the missing person's investigation for Savannah Guthrie's mother, Nancy Guthrie, in a new interview.

Controversy arises in Nancy Guthrie disappearance investigation as Pima County official accuses Sheriff Nanos of scolding over FBI cooperation.

Nancy Guthrie, 84, was kidnapped over 100 days ago in Tucson. Sheriff Chris Nanos stated that crucial details are being withheld to protect the investigation.

Nancy Guthrie's family is expressing growing frustration with the pace of the investigation as the search enters its 100th day with no leads.

Nancy Guthrie's disappearance investigation is ongoing after four months, raising more questions than answers.

Nancy Guthrie update: Sheriff Chris Nanos has stopped communicating with Nancy Guthrie's family, with the FBI taking over discussions.