shoppers start run in the opposite direction just a faux secon few section later. investigators believe anis amri was the perpetrator of the attack. he was no training to authorities abroad. and even in the united states senior foreign correspondent az more from berlin. >> reporter: we are at the christmas market in berlin that was the scene monday night of that terrible truck attack which left 12 dead and 50 injured, this as the investigation into the attack goes into high gear. and that means the search for 24-year-old tunisian man anis amri. angela merkel saying that officials think they're close to nabbing him. they found his fingerprints on the cab of the truck p. reports also say that that suspect was very much on the german terror radar the past