What gets me is the countless people that deny him being a muslim, personally I can't say for a fact that he is muslim, but I can say without a doubt that he IS NOT Christian. Whatever the case, if you don't believe Christ died on the cross for all our sins, believe Abraham was a true saint and Jesus only a messenger, or think that you'll get 72 virgins after you strap a bomb to yourself and kill anyone that doesn't share your false beliefs, my opinion of you is the same. The Bible is in black and white, you either believe and live for God, or you don't and condemn yourself to eternal damnation. If he were a true Christian, there wouldn't be any doubt, he wouldn't even need to be asked. Ask any true believer and you'll get a straight response with no delay or stuttered speech while staring at the floor. I'm Christian and proud of it. Anyone that can't do that is either ashamed of the Lord, or doesn't believe in him.
"If you forsake the LORD and serve foreign gods, he will turn and bring disaster on you and make an end of you, after he has been good to you." -Joshua 24:20