I wouldn't think it's war-related. It's an intriguing theory though. I just think that people are just sick in the head, and will do anything to get attention. Conveniently enough, they choose to use a religious affiliation to get that much more attention. Look at the militant Muslims. Same thing. They do evil acts in the name of Islam. Worst part is, the legitimate Muslims and Christians are the ones who suffer because of these people who do such acts.
Whether you agree or disagree with what religions stand for, it's these "phoneys" who are ruining it for all of us. And no, I still disagree that this is due to unrest with the current conflict overseas.