deadly berlin truck attack was shot and killed by police near milan. 24-year-old anis amri was the sublt of a manhunt since wednesday. for more, petes media arm release d a video and said a man who is amri claims allegiance to isis. we don't know for sure. we don't know this is him. what do we know about him and his movements around europe? >> well, one question is whether he was directed by isis or whether this was something of him communicating with isis, people who were like-minded. the question on how he came to do this is something that will take weeks and months to answer. whether he was pushed to do it or decided to do it on his own and hooked up with others. as for his movements, the question here of course the how did he get from germany to italy? he had to cross the border from germany to france and then from france to italy. a lot of people are asking, how could he do that? it's not like watching a movie from the 1950s where every time the train gets to the border it stops and guys in uniform come and ask for papers. it doesn't work that way in europe anymore. it hasn't since 1995 under something called the shangan agree