I have no issue with calling them Muslims.... just like I have no issue calling the recent mass shooters in the USA Christians... as that is what they are
they are both bad ones.... for sure, but neither religion makes people good, good and bad people can believe either
you can see from my history, I call both Muslim and Christian religious fanatics... "religious fanatics" much of the time except when clarity is needed
The recent shooter did so for the sake of Christianity?