Jor-El (Earth-230)

Jor-El was a lead scientist on the planet Krypton. On the day celebrating Krypton's 10,000th anniversary of civilisation he unveiled a device which would project an impenetrable force field around the user for 24 hours, however, an overload in the circuits caused by a heavy ion storm killed the test subject, his wife Lara. Blaming the weather control operators, who had taken the day off to join the ecelebrations, for his wife's death, Jor-El went mad with grief and destroyed his planet using a "Lethal Liquid", fleeing the destoryed planet with his son Lex-El.

His ship crash-landed on Earth, killing Jonathan and Martha Kent, notorious bank robbers fleeing the police. Upon landing, Jor-El realised that he was not granted superpowers by Earth's yellow sun as Lex was, Jor-El diagnosed himself as suffering from "Omega Fever", which was cancelling out his superpowers, however, he mistakenly believed that he had inherited the disease from his parents, when in fact it was a symptom of his madness. He took the name Jordan Luthor and began working as a doctor in Smallville. His son, Lex Luthor, became Superboy.

Years later, an assassin tried to kill Superboy with a bullet made from the wreckage of Jor-El's crashed ship. Although Lex was saved by Clark Lang, Jor-El decided to destroy Smallville while Lex and Clark were out of town. However, Clark took fell unconscious and Lex rushed him to his father's surgery. When Jor-El found Clakr in his home and tried to throw him out, a newly aggressive Clark atacked and accidentally killed him.