Since the murder of Jack the Ripper in Whitechurch, London in 1888, the incidence of serial killers has steadily increased. Celebrities such as Charles Manson, John Wayne Garcisy, Ted Bondi and Myla Hindley are afraid of the hearts of ordinary people who can not understand the non-human behavior of these violent people . Factors driving the people to kill are still controversial. Many people believe that bad child rearing and traumatic childhood experience is the main factor that produces continuous killers, but others are born only because they are evil.
In order to begin to understand gun violence and mass murder in this country, we need to understand the mechanism behind it and the moving parts. In the past few decades, mass murders were normative and never slowed down. The FBI defines it as "a series of murders (more than 4 people) in the same case and there is no obvious period of time between murders." In contrast, a semi-automatic gun fires one shot when the trigger is pressed. A well-known example is AR-15. This gun is a semi-automatic version of the rifle used by the US Military M16. More than 5 million AR-15s are legally sold for many years and are very popular among civilians.
Over the past 15 years colleagues and I have studied a large number of murdered teenagers and adults (see research at forensis.org). We deliberately kill three people or more in the incident except the criminal and we define that the root cause of this crime is studying the case in the ancient actions the United States and abroad. Second mass murder case with feet. The media and "troublesome" incident in Pittsburgh in April 2014 caused the media to worry - it is important to pay attention to the people's misunderstanding of this rare and act of terrorism. I would like to use this opportunity to clarify what I think is seven major myths of mass murder.