Can Göktuğ Boz attacked 28-year-old Başak Cengiz with a samurai sword late on Nov. 9. Cengiz did not know Boz and had come to Istanbul for training. She died shortly after the attack. Boz was arrested sitting close by the scene of the crime.

Newly released photos of Boz’s home in Ataşehir show a deeply disturbed individual. In his sparse apartment, the walls are papered with obsessive, self-regulating, and self-punishing lists. The windows are covered with newspaper, and all surfaces are littered with games - Rubik’s cubes, chess, Jenga, and abacuses. Cigarette boxes, post-its, and coins litter the room.

The content of the lists on Boz's wall, however, reveals the extent of his disturbance. Lists of exercises and records of his weight seem to indicate self-punishment, regulation, and an adversarial relationship with his body. 

“Sports from morning to evening,” one list writes, another says “I know for sure I couldn't pass 67 [kg] when I have allergies.” Another says, “Just push-ups, prison, doctor, poison, fitness, cheating.”

The fragmented, manic nature of the notes indicates an individual that is severely disturbed. 

Others of the notes belie the more violent nature of his inner world.