terror attack there. authorities in the united states and europe knew the main suspect was a potential threat. a german investigate show that he was linked to an isis recruiting cell and discussed launching an attack. brian todd has details from washington. >> reporter: frightening new video seconds before impact. newly released footage of the truck speeding through an intersection in berlin towards the christmas market. now german authorities are more confident than ever that this ma man, believed to be seen in this video, was the driver of the truck that killed a tozen people in berlin. >> translator: we were able to find finger prints on the outside of the truck, on the door and the door pillar. >> reporter: now new information on amri's ties to an isis recruiting network and what