India, Aug. 1 -- Savannah Guthrie commemorated the six-month anniversary of her 84-year-old mother's disappearance by urging the alleged kidnappers, who have plunged her family into "agony and despair," to come forward. Her plea comes just one day after the complete texts of two ransom notes were made public.

"This is our beautiful Mom," the co-host of the 'Today' show posted on Instagram with a picture of Nancy Guthrie on Saturday morning.

"Six months ago, someone took her out of her bed in the dead of night. We have lived every moment, every breath, and every heartbeat in agony and despair ever since," Savannah said.

Nancy Guthrie was last observed being dropped off at her residence in Tucson by family members on the evening of Janua...