Why do you think jeffrey dahmer became a serial killer please explain why

Is this a homework question?

I remember reading a book on him many years ago. Some believe that criminals are born evil, while others think that people become evil because of a bad upbringing. Dahmer had a good family but soon was drinking and experimenting with dead animals. I'm not a psychologist, but I believe that some people are born evil. Many people with bad upbringings don't become killers. Experts say that the three things that predict a future murderer are bed-wetting, animal cruelty and setting fires and I think that Dahmer and most other serial killers had all three.

Psychosis is rarely noted among serial killers. The predominant psychiatric diagnosis noted in the group tends toward the psychopathic, meaning they suffer from traits within a specific cluster of dysfunctional personality characteristics, those most commonly associated with Antisocial Personality Disorder or Dissocial personality disorder.[6][7] Psychopaths lack empathy and guilt, are egocentric and impulsive, and do not conform to social, moral and legal norms. They may appear to be quite normal and often even charming, a state of adaptation that psychiatrist Hervey Cleckley named the "mask of sanity".[8]

Serial killers tend to share the following general characteristics:[9][10]

The majority are single, white males.

-They are often intelligent, with IQs in the "bright normal" range.
Despite their high IQs, they do poorly in school, have trouble holding down jobs, and often work menial jobs.
They tend to come from unstable families.
As children, they are typically abandoned by their fathers and raised by domineering mothers.
Their families often have criminal, psychiatric and alcoholic histories.
They often are mistrustful of their parents.
It is common to find that as children, they were abused—psychologically, physically and/or sexually—by a family member.
Many spend time in institutions as children and have records of early psychiatric problems.
They have high rates of suicide attempts.
From an early age, many are intensely interested in voyeurism, fetishism, and sadomasochistic pornography.
More than 60 percent wet their beds beyond the age of 12.
Many are fascinated with fire starting.
They are involved in sadistic activity or tormenting small creatures.

Serial killer - Wikipedia, the free encyclopedia (http://en.wikipedia.org/wiki/Serial_killers)

Please don't answer homework questions on the legal boards. "Twinkie" had the only answer - is this homework?

This is also most definitely not a question about criminal law so OP doesn't even have the right category.