India, Feb. 13 -- The search for Nancy Guthrie, 84, the mother of Today co-anchor Savannah Guthrie, entered day 13 on Friday. She was reported missing from her home in Tucson in what authorities believe may be a kidnapping for ransom.

Earlier this week, investigators released images showing an armed individual wearing a ski mask at the door of Nancy Guthrie's home on the day she disappeared. The man appeared to tamper with the camera. However, he has not been officially identified.

In an effort to visualize what the mask may have concealed, Lois Gibson, a longtime forensic sketch artist, released a portrait based on the surveillance images.

Gibson, who spent decades with the Houston Police Department, is widely regarded as one of the c...