It's really hard not to be stereotypical about muslims. And not just because of ISIS.

Take my country, for example. A girl was raped by a guy or a bunch of guys? In 80% of such cases, the rapists are muslims.
A guy was shot or stabbed to death in a street incident? The attackers were muslims.
A nanny cut off the child's head and proudly carried it in public? Guess what, she's a muslim.

Nevertheless, I try hard to convince myself that crime has no nationality and not all muslims are like that.