How does Perry Smith respond in some significant way to justice or injustice?

Perry is responsible for the deaths of all four members of the Clutter family. Although he originally resists even the idea of the robbery, the charged atmosphere of the Clutter home prompts him to a frenzy of frustration and resentment, and the Clutters become the unfortunate targets of his fury. Prior to this revelation, however, we learn that he is sensitive, thoughtful, creative, and highly intelligent. He comes from a troubled background, and he harbors escapist fantasies of grand adventures in exotic locales, and of being rescued from his woes by beautiful yellow parrots. His demure, reflective presence is a sharp contrast to Dick’s bombastic personality, and the pair spend much of their time at friendly odds with one another. Perry is a complex character who views his guilt and arrest as a soul who has lost his way rather than a sociopathic murderer.