The Joker may be the most iconic Batman villain.
Nevertheless, I was wondering if instead of the Joker, it was Johnathan Crane, aka the Scarecrow, who got the monstrous serial killer status. You know, killing his victims with fear venom or something like that.
"When criminals want to scare each other, they tell each other Scarecrow stories."
If something like that HAS occured, please let me know.