[Machine Translation] If a mosquito lands on your arm and tries to suck your blood, you hit it with a slap, right? Mosquitoes and people are no different for me." ("Omuta Quadruple Murder Case" by Takahiro Kitamura), "I want to die as an idiot when I die" ("Kinki Serial Cyanide Death Case" by Chisako Kakehi). The author has talked with the heinous murderers who have shaken the world, and has listened to their impulses and thoughts. At first glance, they seem like ordinary people, but the logic that comes out of their mouths is out of the ordinary. They are cruel, self-centered, ferocious, cunning, and unusually adept at getting into people's pockets. This is the shocking record of an interview in which the author continues to explore the unique odor they emit.