FBI says it arrested a 'total imposter' for trying to profit off Nancy Guthrie's disappearance with a bogus ransom

Savannah Guthrie's mom, Nancy Guthrie, was last seen on January 31.

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• The FBI has made an arrest related to an "imposter ransom demand" involving Savannah Guthrie's mom.
• Police believe Nancy Guthrie was taken from her Arizona home five days ago.
• Authorities said they are taking a separate ransom letter distributed to the media "seriously."

The FBI has arrested what an official called a "total imposter" for allegedly trying to profit off...