Moreover, some psychologist leaning about Zodiac killer’s behavior. Zodiac killer always during crime in weekend or after dark. Zodiac killer’s motive was to show superiority he also wanted attention from social and want to control the police inquiry. “Three times during his killing spree, Zodiac went after couples, who indicates that he was feeling envious due to his inability to have a meaningful love relationship with another person. Zodiac killer enjoyed ambushing his victims, he hasn’t considered the killings high-risk crimes. All of Zodiacs’ killings were out in the open, but he hasn’t seen them as risky for him. He may have fantasized about being more powerful than he actually was” Anonymous (2006). Comparison and Analysis: Biological/Biosocial and Classical Theories of Crime. Retrieved from https://marybernstein.wordpress.com