George Tatsunami

Possessing the alter "Big Magnum" - a huge revolver that can decimate whole houses with one bullet - George Tatsunami is a dangerous lunatic, always exploiting his alter power to bend people to his will. His heavy-handed tactics have earned him a bad reputation among the Inners of the Lost Ground, and he is known for his very short temper and itchy trigger finger. He first appears in Episode 4. from wikipedia