Passions : Criminal Perpetrator : Homicide many at once

Eric_Harris_and_Dylan_Klebold

Eric David Harris (April 9, 1981 – April 20, 1999) and Dylan Bennet Klebold ( KLEE-bohld; September 11, 1981 – April 20, 1999) were American high school seniors who perpetrated the Columbine High School massacre at Columbine High School on April 20, 1999 in Columbine, Colorado. Harris and Klebold killed 12 students, one teacher, and wounded 24 others. After killing most of their victims in the school's library, they died by self-inflicted gunshot wounds. At the time, it was the deadliest high school shooting in U.S. history.The ensuing media frenzy and moral panic led to "Columbine" becoming a byword for school shootings, and becoming one of the most infamous mass shootings ever perpetrated in the United States.Harris and Klebold were both born in 1981. Harris was born in Wichita, Kansas, but moved around frequently as a child due to his father's occupation in the United States Air Force, while Klebold was born and raised near Columbine. Harris's family eventually settled in Colorado in 1992. Shortly after, Harris and Klebold met while they were in the 7th grade. Over time, they became increasingly close. By the time they were juniors in high school, they were described as inseparable. There are differing reports; some say Harris and Klebold were very unpopular students once they were upperclassmen, as well as frequent targets of bullying, while others say they were not near the bottom of the school's social hierarchy and that each had many friends, along with active social lives. Columbine High School was known to have an intense "jock culture", which saw popular students, mainly athletes, benefit from special treatment from faculty and other students.According to their journal entries, Harris and Klebold had seemed to begin planning the attack by May 1998, nearly a year before the attack. Throughout the next eleven months, Harris and Klebold meticulously built explosives and gathered an arsenal of weapons. Both Harris and Klebold each left behind several journal writings and home videos, ones they made both alone and together, foreshadowing the massacre and explaining their motives. Harris and Klebold hoped this content would be viewed by the public extensively and inspire followers, although much of the evidence has never been released by authorities.
Harris and Klebold often wore trench coats in school, and in general, as part of their everyday outfits, so after the massacre, it was widely believed Harris and Klebold were part of a clique in school called the "Trenchcoat Mafia", a group of misfits in the school who supposedly rebelled against the popular students. This turned out to be untrue, as neither Harris nor Klebold had any affiliation with the group. The pair's aforementioned writings and videos gave insight into their rationale for the shooting. The FBI concluded that Harris was a psychopath, who exhibited narcissistic traits, unconstrained aggression, and a lack of empathy, while Klebold was concluded to be an angry depressive with a vengeful attitude toward individuals who he believed had mistreated him. However, neither Harris nor Klebold were formally diagnosed with any personality disorders prior to the attack, so this conclusion is often debated. In the following years, various media outlets attributed multiple motivating factors to the attack, including bullying, mental illness, racism, psychiatric medication, and violence in music, movies, and video games. Despite these conclusions, the exact motive for the attack remains inconclusive.
Harris and Klebold have become pop culture icons, with the pair often portrayed, referenced and seen in film, television, video games, music and books. Many killers since the shooting have taken inspiration from the pair (dubbed the Columbine effect), either hailing them as heroes, martyrs and gods, or expressing sympathy for them. Harris and Klebold also have a fanbase, who have coined the term "Columbiners", who write fan fiction and draw fan art of them. Others have also dressed as the duo for cosplay or Halloween.

John_Felton_Parish

John Felton Parish (July 4, 1933 – August 9, 1982) was an American spree killer who shot dead six people and wounded three others at two warehouses in Grand Prairie, Texas, United States on August 9, 1982. Afterwards, while driving a hijacked semi-trailer truck, he led police on a high-speed chase through Grand Prairie downtown that ended only when he broke through a police barricade, injuring an officer, and crashed into a building. He was subsequently killed by police during a shootout.It was the worst shooting rampage in Dallas-Fort Worth history at that time.

Jean-Claude_Romand

Jean-Claude Romand (born 11 February 1954) is a French spree killer and impostor who pretended to be a medical doctor for 18 years before killing his wife, children and parents in January 1993 when he was about to be exposed.
Heavy suspicions also weigh around the death of his father-in-law, Pierre Crolet, who fell from a staircase on 23 October 1988. Jean-Claude Romand is the only witness to the alleged accident.

John_Salvi

John C. Salvi III (March 2, 1972 – November 29, 1996) was an anti-abortion extremist who carried out fatal shootings at two abortion facilities in Brookline, Massachusetts on December 30, 1994. The shootings killed two and wounded five. An insanity defense at his trial was not successful and he was convicted of two counts of murder and sentenced to life in prison without the possibility of parole. He died in 1996 in what was officially ruled a suicide in his jail cell.

Sean_Sellers

Sean Richard Sellers (May 18, 1969 – February 4, 1999) was an American triple murderer, one of 22 persons in the United States since the reinstatement of the death penalty in 1976 to be executed for a crime committed while under the age of 18, and the only one to have been executed for a crime committed under the age of 17. His case drew worldwide attention due to his age as well as his jailhouse conversion to Christianity and his claim that demonic possession made him innocent of his crimes.

Auguste_Vaillant

Auguste Vaillant (27 December 1861 – 5 February 1894) was a French anarchist, most famous for his bomb attack on the French Chamber of Deputies on 9 December 1893. The government's reaction to this attack was the passing of the infamous repressive Lois scélérates.
Vaillant threw the home-made device from the public gallery and was immediately arrested. The weakness of the device meant that the explosion only caused slight injuries to twenty deputies. At his trial in Paris he was defended by Fernand Labori. Vaillant claimed that his aim was not to kill but to wound as many deputies as possible in revenge for the execution of Ravachol. Despite this, Vaillant was sentenced to death. He was put to death by the guillotine on 5 February 1894.
His bombing and execution in turn inspired the attacks of Émile Henry and Sante Geronimo Caserio (who stabbed to death Marie François Sadi Carnot, President of the French Third Republic) and Bhagat Singh (who threw a low-intensity bomb into the Central Legislative Assembly in British India, and was hanged later). Vaillant's last words were "Death to the Bourgeoisie! Long live Anarchy!"