Long criminal record already on the radar of German Authorities. Tracking every development, matt bradley joining us. The big question, how exactly was this guy able to elude authorities when he was well known to them . Clearly not a german citizen. Reporter its a very big questions. Opponents of Angela Merkel are asking the same question. Why did this man not only detained but somehow allowed to commit a major terrorist crime while he was under Police Supervision and surveillance . Up until now, he hadnt really committed any crime. One of the reasons he was being surveyed was because he had been suspected of planning an attack in order to steal weapons in order to then use the weapons to launch another terrorist attack. So the police and the authorities were planning to try to deport him but that also ran into bureaucratic complications. Mostly because the tunisians werent able to verify his nationality in time and he actually got his passport, his tunisian passport just yesterday, a