Being a muslim in a foreign country, I confirm. I don't know why but I feel scared/guilty when something like this happens. It's sad they have to use Islam's name to do this when my interpretation (of Islam) is exactly the opposite.
I don't know many Muslims and it's just too easy to let bigoted remarks go, but this attack feels like it could really bring out the worst in reactionary people. So stay safe and know at least one person has your back.