Article continues below advertisementNancy Guthrie didn't leave her home without putting up a fight, according to a former FBI agent. "I believe that Nancy fought him [her alleged kidnapper], either inside the door or just outside, depending on where the first appearance of this blood splatter evidence is," said former FBI agent Jim Clemente on the Wednesday, April 22, episode of "Brian Entin Investigates."Clemente and the NewsNation reporter were discussing the chilling footage depicting a trail of blood leading away from the 84-year-old's front door.