Gerry Conway

Gerard Francis Conway (born September 10, 1952) was an American comic book writer, comic book editor, science fiction writer, screenwriter, television writer, and television producer. He is known for co-creating the Marvel Comics vigilante antihero the Punisher as well as the Scarlet Spider (Ben Reilly), and the first Ms Marvel and also writing the death of the character Gwen Stacy during his long run on The Amazing Spider-Man in the story arc "The Night Gwen Stacy Died".  At DC Comics, he is known for co-creating the superheroes Firestorm, Power Girl, Jason Todd, and the villain Killer Croc and for writing the Justice League of America for eight years. Conway wrote the first major, modern-day intercompany crossover, Superman vs. the Amazing Spider-Man. Description above from the Wikipedia article Gerry Conway, licensed under CC-BY-SA, full list of contributors on Wikipedia.