Jeffery Dahmer

Jeffery Dahmer was a notorious serial killer and sex offender who had victims being male men and boys. During his trial, he was found guilty of first-degree murder where it was confirmed that he had committed 17 murders although he claimed to have more victims. During his crimes, it was found that he used brutal and cruel tactics such as cannibalism, necrophilia, and the preserving of body parts for personal interests. He also performed rape and dismemberment of his victims. After his sentencing, he was diagnosed with multiple mental diseases including borderline personality disorder, schizo-typical type disorder, and psychotic disorder, which led to his sentencing of life imprisonment. Based on his symptoms of conduct disorder he can be considered a psychopath.
This is similar to Gilberto Valle also known as the "Cannibal Cop," who had cruel fantasies and had set up a plan to go through with the process. Unlike Dahmer, who had acted upon them, Valle had the plot to rape and kidnap individuals he both knew and did not know. Before he was caught, he had used his police privileges to gather information on his potential victims.
 
As a child, it was said that Jeffery was deprived of attention as a child, yet he was seen as energetic and happy by his teachers. He had to go through his mother's addiction and suicide attempt which could have had a lasting impact on his mental state. He also lacked socially and was considered quiet with a limited amount of friends. As a growing child, he also had a high interest in dead animals, collecting carcasses as well as bones and large insects. There were incidents where he would decapitate animals and developed a fixation of their capture.
During his high school years, Dahmer had a polite attitude and abused alcohol. In high school, he also developed a fantasy for rape and dissection. Dissection is the dismembering of organisms used to view their organs and internal structure, this was mainly used for research and surgical procedures. During school, Dahmer also had family counseling for in-home struggles, but it wasn't effective for his family, so it led to his family's separation which ended with a custody hearing of only his younger sibling since he was already 18. He had also received counseling through the school, but it was unsuccessful for his benefit. After he had been allowed to live in a house, where he was on his own and able to drink with other youths. This environment drove him to his first murder.

In 1979, Dahmer had enlisted for the army and was deployed to Germany. Later, it was discovered that he had been drugging his fellow soldiers and raping them throughout the time of about 17 months. When he was discharged from the army, it was believed to be due to his alcohol abuse which was unsuitable to be eligible to stay in the army. After his discharge, he attempted to transition back to civilian life where he did not go back home but chose to go to Florida to start a new life on his own. Soon after, Jeffery had lost his home due to his alcohol abuse and ended up moving back to Ohio with his father who, later that year, sent him to his grandmother's in Wisconsin with hopes to get rid of his drinking habits. This attempt was based on the perception that his grandmother was the only person that he showed a caring attitude towards. After the move, Dahmer had consistently laid off drinking and smoking to be a help towards his family member and accompanying her with daily tasks. He later found a new interest in his job as a phlebotomist, phlebotomy is the action of using a needle to extract blood from a patient. Subsequently losing his job, he was arrested and charged for crimes such as disorderly conduct and indecent exposure prompting fines and one-year probation.
After several murders, his capture had been announced when one of his victims had escaped, leading to the discovery of severed heads and skulls in his possession. During the interviews and interrogations, Dahmer waived his right to have lawyers present. In 1991, he had been charged with 11 counts of first-degree murder but was tried with 15 counts of first-degree murder in Milwaukee, Wisconson. The prosecution rejected the insanity plead from the belief that Dahmer was not suffering from any mental diseases during the time of his murders. In Wisconson, they use the Model Penal Code Rule which asks if the accused had the capacity to know whether their committed crime had criminal consequences. It was determined that these murders were not impulsive since he had strategies and progressive steps towards the crime.