Going by lore, the town assassin would be Gojo imo:
He was always going off by himself, 1 vs all, and wasn't at any point the leader of the sorcerers (at least as far as giving out orders goes)
A character that was actually coordinating attacks somewhat was Mechamaru.
He was always going off by himself, 1 vs all, and wasn't at any point the leader of the sorcerers (at least as far as giving out orders goes)
A character that was actually coordinating attacks somewhat was Mechamaru.
But i think @Flower said Gojo is very likely the town leader before, not sure whether its based on info or just a safe guess.