Atsushi Kanamoto

Johnny Black, 金本敦 / ジョニーブラック

Johnny Black survived Sword Art Online, belongs to the notorious Red Guild Laughing Coffin, partners with Xaxa, and has a reputation for employing poisonous tactics during combat.

Spoilers:

Half a year after the «Death Gun» incident, Atsushi followed Kazuto and Asuna on their way to Asunas house, until Kazuto noticed that he was following them. He presented himself and menaced Kazuto with a syringe of Succinylcholine and later stabbed him. Although he was stopped and captured by the police, he succeeded in hurting Kazuto severely.