There is a pattern of dysfunctional family relationships among serial killers, as evidenced in the childhoods of Richard Ramirez and John Wayne Gacy. The normal educational experience has not occurred between parent and child, so the child does not emotionally develop a sense of self and does not have the rational notion of right and wrong. When the serial killer carries out his murder plan, the Superego is unable to thwart the desires of the id because his parents did not establish the morals and values ​​that make up the Superego during their neglectful childhood. Furthermore, the serial killer does not experience the feeling of guilt that the ego/superego is supposed to release if the feeling of right and wrong is assured. The abused child who later becomes a serial killer feels like he has no control over his hostile environment, so he imagines a different reality that he can control as a form of ease. This is where the thought disorder begins. The child develops his own idea of ​​empathy and good and evil in this egocentric fantasy, which eventually transforms him into a sociopath (Garrison, 1996, p. 5-6). Clearly, a neglectful childhood experienced by a serial killer underlies the internal process of catathymic crisis. The sociological theory founded by Albert Bandura called Social Learning Theory can explain why a child who observes an abusive parent (or anyone with whom they regularly associate) transgressing violence will cause the child to imitate that violent behavior at the future. Social learning theory emphasizes observational learning through direct experience and through the human model. Observational learning takes the form of three different models: the demonstration of a real individual...... middle of article ......Wayne Gacy and Richard Ramirez. A serial killer's sadistic behavior is a direct result of physical and emotional abuse at the hands of a parent. People who were victimized as children will become perpetrators as adults because victimization was modeled for them during their learning and developmental stages. Additionally, the normal bonding experience that should occur between parent and child has not occurred, and the moral and ethical constraints that were not implemented during superego development are lacking. Not only is the parent-child bond not assured, but also the bond between the individual and their society. Therefore, catathymic crisis, social learning theory, social control theory and structural model of personality confirm that a neglectful childhood environment is the ultimate cause of the development of a serial killer..