No kidding.
How many Nigerian Christians (primarily Ibo tribe as I recall) have tried to blow up airliners?
Nigeria has been wracked with muzzie radicals killing everyone that is not their brand of religion. Sunni, Sufi and other variations.
I got to help one summer in my youth, creating a new Igbo translation of the New Testament.
Nigeria was a prosperous country, but has crumbled under the corrupt leadership that took over with “democracy”.
A fool's errand, if there ever was one.
The point is that not all Nigerians are involved in Islamic terror. This guy did not become a terrorist because he was Nigerian, he became a terrorist because he was a Muslim.