Xavier is a normal person, who is a hero a save someone live, and it's ended up when a unknown virus come to this world and get infections to someone, and Xavier is get this unknown virus too from Someone, the way he was a kind man became a different people he more rough and aggressive when being a corrupted by the virus on himself. The was everyone should running away from someone who get this unknown virus, or you going die or something else from them who gets this virus. Warning unknown virus