Because this is a criminal act regardless of whether the guy is a Muslim or not.
WHY he did it is irrelevant; the FACT that he did it is.
We have less than 1% Muslims in our military and the one that attacks our own guys just happens to be a Muslim?
Congratulations, you've just made the point--completely unintentionally--that there isn't a big enough base of data for you to draw a conclusion based solely on statistics. Kindly note that (<1% of the Army-1) Muslims have not engaged in such actions.
It's all a coincidence?
I didn't say that--I said it was irrelevant. Kindly learn how to read.
I don't know about you, but I have a lot of friends and family over there right now, and I don't sleep well thinking they might have enemies sleeping with them in their tents.
I probably have more friends over there than you, pal, so kindly either read my post or STFU.