Whatever be the reason, killing is killing. nothing but MURDER. from their point of view, every terrroist has some justification.
Talking of God & religion, God did not divide his land into countries. so why fight for it?
If fighting for a peice of land is justfified, then going by that logic all cases of freedom fight are justified. Kashmir, Assam, Nagaland, Chechnya, Palestine,..........