Lex Luthor (Injustice)

This version of Alexander Joseph "Lex" Luthor was a hero in the 2013 DC fighting video game, Injustice: Gods Among Us.

History
Lex Luthor, much like the prime universe counterpart, was a billionaire and founder/owner/CEO of LexCorp. However, he never was a criminal. He was even best friends with this world's Superman, that is until Superman took things into his own hands after he was tricked by the Joker into killing both Lois Lane and their unborn child thinking he was ffighting Doomsday. Because Lois' heartbeat was connected to a nuclear bomb the Joker planted in Metropolis, it went off destroying the city and all it's inhabitants. Superman would later murder the Joker.

Shortly after Superman formed The Regime, he joined Batman's Insurgency and for five years, while under the guise of being Superman's friend, he assisted Batman in anyway he could. He even assisted in bringing the prime universe's Justice League members Batman, Green Arrow, Wonder Woman, and Hal Jordan.

After a being in a battles against the prime universe's Joker who was accidently brought into their world and members of The Regime, Lex Luthor was then murdered by Superman under the watchful eyes of millions.

Legacy
Even though Lex was dead, his death wasn't in vain for the world saw what Superman truly become and the Insergency he helped would win because of the sacrifices like Lex Luthor and others made and the world is eternally grateful for it.