CNN just reported he is an immigrant from Iran, but a German citizen.
That would harmonize the the shouting “Allah hu Akhbar” and him yelling “I am German.”
So probably Shi’a, therefore probably not ISIS, but more like a Hezbollah enthusiast.
Which, in turn, points to the fact that at root, there are some things in Islamic theology that transcends all these groups. While we need to go after the groups, we also need to recognize there is a fundamental ideological and theological root to all this terrorism from the Islamic world, and we need to deal with that.
He yelled Allah Akbar, a bystander shouted *I am German!*