India, Oct. 19 -- Nancy Guthrie Case Latest Update Today: The investigation into the disappearance of Nancy Guthrie, the 84-year-old mother of Today show host Savannah Guthrie, has seen fresh developments after a man was briefly detained and subsequently released in Arizona. Authorities also carried out a court-authorized search in Rio Rico, south of Tucson, as investigators continued efforts to establish what happened to the missing woman.

The developments came on the same day FBI Director Kash Patel released previously inaccessible images and video showing a masked, armed individual near Nancy Guthrie's front door around the time she is believed to have disappeared. Investigators are seeking public assistance in identifying the individ...