Of course they didn't.
I live in Germany so it’s been page one news for a couple of hours.
Based on the cops ID of the guy...he is NOT a Muslim. He’s a regular German guy, mid-20’s, hyped-up narcotics background, and from Hessen (not from the Munich region). Based on the description by the witnesses, my humble guess is that he was hyped up on meth.
So, not an immigrant, not a Muslim, and not a normal guy...just some nut-case on a high...nothing else.