In what comic book did the fictional husband of Sue Dibny, who was murdered by Jean Loring, first appear?
Jean Loring: Jean Loring is a fictional character in comic books published by DC Comics, formerly associated with superhero the Atom for whom she was a supporting character and primary love interest. Jean Loring:  The character appeared continually in minor roles until the 2004 storyline "Identity Crisis", in which she suffered a mental breakdown and murdered Sue Dibny, wife of the Elongated Man.
i don't know