investigators say they found amri s fingerprints on the door of the truck used in the deadly attack. adding to their confidence that he carried it out. as more is discovered about his background are his links to radical islamists. translator: we have additional information that the suspect is the attacker. in the driver s cab, we found fingerprints and there are additional indications to support this. reporter: the lengthy investigative file connects him directly to a terror cell in germany. other members of the group also stalked of carrying out attacks, including driving a truck full of gasoline and loaded with a bomb into a crowd. the five men connected to the cell, including a close friend of amri, were arrested in november and charged with terrorism offenses. two of amri s brothers say before he left tunisia as a teenager, he was a very different person. he drank alcohol and didn t pray. they say they believed he changed while in prison in italy. he served a four-year sentence
germany for the most wanted man in europe. investigators say they found amri s fingerprints on the door of the truck used in the deadly attack, adding to their confidence that he carried it out. as more is discovered about amri s background and his links to radical islamists. we have additional indication that the suspect is the attacker. in the driver s cab, we found fingerprints. and there are additional indications to support this. reporter: the lengththy investigative file connects amri directly to a terror cell in germany. other members of the group also talked of carrying out attacks, including driving a truck full of gasoline and loaded with a bomb into a crowd. five men connected to the cell, including a close friend of amri, were arrested in november and charged with terrorism offenses. two of amri s brothers say, before he left tunisia as a teenager he was a very different person, drank alcohol and didn t pray. they say they believe he changed