The question is: why do people commit crimes? What's the real story behind the suspect's eyes? What makes them work? Is it an act just to be recognized, money problems, anger problems, or a form of physiological problem; Maybe just a pure and simple accident? People have been researching and questioning this for a long time. Criminologists study the causes of crime and ways to prevent it (Cause of Crime). The main question is: why do people have psychological thrillers that push others to commit crimes? Crime began to increase around 1924-1938 (A Centennial History). Back when machine guns were used and gangs with bosses like "Scarface" and "Bugs" arose, it was the time of American Gangster (A Centennial History). They created a violent He grew up as a normal child but once he reached the age of ten, he began to take an interest in deceased animals. As he grew up, his interest in dead animals led him deeper into his curiosity about killing living people; which he first got a taste of at the age of eighteen after picking up a hitchhiker. Dahmer not only killed random victims, but also had sexual intercourse with them and kept a “part” of the victim as a “trophy.” The reason behind Dahmer's actions was to have "young sexual partners", but nevertheless she was not considered crazy, just morally wrong. Dahmer craved attention and got his attention which resulted in himself dying in prison after having a severe headache. There are multiple theories and what the psychologist can walk away from based on what the criminal tells them. Every person is unique, and the way people perceive certain things or justify their actions varies. This being the case, one cannot speak for an entire crowd of individuals or, in this case, criminals. Studies by psychologists can help us determine some factors that can influence the actions of criminals. People who kill may have had an abnormal relationship with an individual; an abusive, neglectful or completely absent parental figure. They might even kill because they thrive on the power they feel when they inflict it on others. Thieves might steal because they really need money, want materialistic things, or simply because they want to be able to get what they want easily. Regardless of these factors, we can conclude that there is a certain void that people feel in their lives that they desperately need to fill; they have a dangerous desire that they need