Grimlock

Grimlock is a player in Sword Art Online and a former member of the guild Golden Apple. He was the murderer of his in-game and real-life wife, Griselda. He killed her because he didn't like her change in personality as a result of the beginning of the SAO. He also aided Caynz and Yolko in their plans to catch the Griselda's killer by forging them weapons to use in the in-AREA murders.