TUCSON, Ariz. — A prominent forensic psychologist says he doubts the authenticity of two ransom notes tied to the disappearance of Nancy Guthrie, the 84-year-old mother of "Today" show co-anchor Savannah Guthrie, who has now been missing for more than six months. He said, "I certainly question the legitimacy of the so-called ransom note," adding that the inconsistencies "raised a lot of questions for me of veracity." Read more Alleged First Ransom Note in Nancy Guthrie Case Addressed Directly to Daughter Savannah Guthrie Revealed Alleged First Ransom Note in Nancy Guthrie Case Addressed Directly to Daughter Savannah Guthrie RevealedDespite his skepticism, Mohandie said investigators made the right call in releasing the notes publicly, even without confidence in their authenticity. Guthrie's disappearance has drawn national attention given her family's television profile. Anyone with information related to Guthrie's disappearance is asked to contact the FBI at 1-800-CALL-FBI, or, for those wishing to remain anonymous, to call 520-88-CRIME.