The end has finally come for Superman’s greatest foe in Superman: The Last Days of Lex Luthor (by Mark Waid, Bryan Hitch, Kevin Nowlan, David Baron, Richard Starkings, and Tyler Smith of Comicraft). Lex has accidentally bathed himself in radiation due to tampering with kryptonite, causing his cells to rapidly decay. With known science incapable of addressing his illness, Superman’s inability to not help others could be Lex’s only route to survival. Unfortunately, even the intervention of one of DC's greatest heroes may not be enough to save one of DC’s greatest villains.
Source：https://www.cbr.com/last-days-of-lex-luthor-all-star-superman-premise-flip-dc/
