Bio: Humanity adopted a Zero Tolerance approach to all superhumans. Since they first started appearing, all powered people were jailed, executed or aborted.
Xavier was imprisoned near Pheonix, Arizona when released by the Exiles. After first taking out his rage by murdering a quarter million city-dwellers with a powerful mindblast, he frees the rest of his X-Men to proceed with his goal: eradicating humanity to clear the way for Homo Superior.
After attacking the New York Stock Exchange, Xavier is killed by Mimic and the Exiles.