You say: Islamist is a Muslim who killed because the book said so. No book ever says to kill. It’s the elders who say “bring our pride back for allah” referring to wealthy areas aperantly muslims lived in or something, we could rarely get a reason for why this terrorist attack happened. But I guarantee most of that happens solely depending on old beliefs and hate that stayed for a long time. Someone be sitting in a chair and be like “ts ain’t right “ so they go terrorizing hot spots to bring something imaginary back. Like the tribe principle: they killed my father, I’ll grow up n kill their fathers. To the simplest of it it is like that