Based on the national origins, 6 of the 9 were almost certainly Muslims, but the other 3 were almost certainly not (the Pole, the Armenian, and the Montenegrin).
The problem with the migrants is that they are unassinilatable people hostile to Germany and Western Culture. The migrants are increasingly an in your face, hostile and violent permanent welfare cases.
The Muslims see Western style welfare not ha s hand out to help them build a life in Germany, they see it a form of Jizya tax that is rightfully provided to them by German dhimmis as is their right under the Koran.