The FBI assessment of inauthenticity pertains to the two ransom notes reported in early February, and a third, more recent message.

An FBI profiler has cast doubt on the authenticity of communications related to the nearly five-month-old disappearance of Savannah Guthrie's mother, Nancy. Profiler James…

a second ransom note allegedly sent to some media outlets just days after Nancy Guthrie went missing reportedly said the 84-year-old died and is "buried with nature."

An FBI official said the bureau believes the ransom notes sent to Nancy Guthrie's family are not genuine.