FBI reveals new evidence, including backpack details, in Nancy Guthrie disappearance, doubles reward to $100K

TUCSON, Ariz. — The FBI announced Thursday it is doubling its reward to $100,000 for information leading to the arrest of anyone involved in Nancy Guthrie's disappearance after releasing new details about a potential suspect.

FBI Phoenix said new "identifying details" about Guthrie's potential abductor have been confirmed after a forensic analysis of the doorbell camera footage by the FBI’s Operational Technology Division. 

The suspect is described as a man, roughly 5 feet, 9 inches to 5 feet...