Nancy Guthrie case: All of the known properties searched by authorities since disappearance

TUCSON, Ariz. — Friday night's dramatic search of a home in Rio Rico, Arizona, just north of the border with Mexico, marked the first known in the investigation for the missing Nancy Guthrie outside a property belonging to a family member.

The Pima County Sheriff's Department and the FBI conducted a court-authorized search of a home in the desert community of about 20,000 people where an individual, Carlos Palazuelos, was staying. Palazuelos had been pulled and briefly detained for questioning.