The (unorthodox) murder
Seeing the accomplice go, the madman makes a risky decision. Without someone on watch duty, they would not be able to dispose of anyone at night. So instead, the madman slips a tiny white pill into the vitcim's drink unnoticed. It fizzes and dissolves, undetecable to the unfortunate owner of this drink.
Judgemax was an innocent, a communicating innocent!!!!!!!