Anasui's Backstory

Emporio explains to F.F. what caused Anasui to be placed in Green Dolphin Street Prison in the first place. Since he was a child, he's had a fixation where he has to take everything around him apart, and upon discovering his girlfriend cheating on him when he was 21, his fixation manifested in him murdering both the cheating man and his girlfriend, with a later psychiatric analysis done on Anasui bizarrely coming out normal.

Example of:
A Deadly Affair