A Google Search Of Serial Killers Essay

A Google Search Of Serial Killers Essay

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In a Google search of “serial killer memorabilia”, approximately 135,000 results would appear. While the U.S. produces over eighty-five percent of the world’s serial killers (“Why do Americans Idolize Serial Killers?” 11), Americans still tend to treat these murderers as icons and celebrities. As defined by the Federal Bureau of Investigation, a serial killer is expressed as the unlawful killing of two or more victims by the same offender(s), in separate events. While it is no secret that serial killers have a different mindset than that of a normal person, do these murderers have genetically different minds? Although there is no exact answer as to what causes certain people to have the urge to kill, studies from the “Minnesota Study of Twins Reared Apart” show that sixty percent of psychopathy is due to abnormalities in the frontal lobe of the brain. The other forty percent is due to circumstantial reasons and upbringings (Brogaard). Thus, serial killers are a result of sustainable or heredity brain injuries, rather than environmental influences.
Many people may think that serial killing is due to environmental forces, but the brain can play a significant role in the development of a serial killer. The frontal lobe is one of the four major lobes of cerebral cortex, and is located at the front of the brain. The frontal lobe is responsible for deciphering good from bad, the overriding and suppression of socially unacceptable responses, producing dopamine (the neurotransmitter that makes one feel “happy”), and many other essential functions. Damage to the frontal lobe can be caused by strokes and head injuries. A person could also be born with frontal lobe damage. A study done on serial killers had shown that quiet a few of the k...


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...e at any point in his or her life through a head injury. This then produces the idea that everyone’s DNA could potentially be genetically programmed to become a serial killer, but the frontal lobe of the brain acts as a conscience and barrier to prevent one from killing. The second topic argued that serial killing could be due to circumstantial reasons, such as an abusive childhood. This argument also agrees with the statement. The commonality and characteristics of serial killers are only demonstrated because serial killing is genetic mutation in the frontal lobe. Since serial killers can be genetically different, they are all at the same end of the distribution curve. Consequently, the question at hand has been answered. Not only can genetics be a cause to serial murderers, but brain injuries are also an underlying factor in the makeup of these horrendous killers.

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