Passions : Criminal Perpetrator : Homicide many at once

José María Jarabo (28 April 1923 – 4 July 1959) was a Spanish spree killer, who between 19 and 21 July 1958, murdered four adults and an unborn baby. Jarabo was sentenced to death by garrote and executed in 1959.

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 (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 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 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 (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!"

Perry Edward Smith (October 27, 1928 – April 14, 1965) was one of two career criminals convicted of murdering the four members of the Clutter family in Holcomb, Kansas, United States, on November 15, 1959, a crime that was made famous by Truman Capote in his 1966 non-fiction novel In Cold Blood. Along with Richard Hickock, Smith took part in the burglary and multiple murder at the Clutter family farmhouse.