Last week, I posted some comments about the Charlie Hebdo attacks, suggesting that an attack on the comic book industry is a possibility. My comment was about creator-owned comics pushing boundaries. But it has been pointed out that fanaticism exists in men-in-tights comics.
In the Comic Book Resources column “Fridays…with Greg Hatcher,” Hatcher mentions that scary fanatics have existed in comic book fandom for years. I encourage you to give it a read.