A man is being questioned over the disappearance of Nancy Guthrie - hours after images were released of an "armed individual" at her front door.

Investigators are not ruling out the possibility that more than one person may be involved,” a Pima County sheriff's spokesperson said Feb. 20.

The lack of helpful video footage in Nancy Guthrie’s community may be hindered by several factors, experts say.

The search for Nancy Guthrie entered Day 11 after the FBI shared images from a doorbell camera and a person of interest was detained and released.

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TUCSON — An armed thug in a ski mask was seen tampering with Nancy Guthrie’s home security system on the morning she vanished, according to terrifying footage released by the FBI Tuesday — the first ...