New DNA evidence in Nancy Guthrie’s kidnapping case may bring a breakthrough. The Pima County Sheriff, meanwhile, said he is not in touch with the Guthries.

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