India, Feb. 13 -- Nancy Guthrie, the mother of 'Today' show host Savannah Guthrie has been missing since Jan.31. Believed to be a case of kidnapping, authorities shared the CCTV footage and images of a masked individual on the porch of Nancy's Arizona home on the night she vanished.

As the desperate search for the 84-year-old entered the 13th day on Friday, the FBI provided new description of the kidnapping suspect.

Based on the forensic evidence from the doorbell camera, FBI described the man as "approximately 5'9" - 5'10" tall, with an average build."

The agency also revealed the man was "wearing a black, 25-liter 'Ozark Trail Hiker Pack' backpack" when he was caught on CCTV.

"We hope this updated description will help concentrate t...