Pages using infobox criminal with motive parameter

Ronald Clark O'Bryan (October 19, 1944 – March 31, 1984), nicknamed The Candy Man and The Man Who Killed Halloween, was an American man convicted of killing his eight-year-old son Timothy (April 5, 1966 – October 31, 1974) on Halloween 1974 with a potassium cyanide-laced Pixy Stix that was ostensibly collected during a trick or treat outing. O'Bryan poisoned his son in order to claim life insurance money to ease his own financial troubles, as he was $100,000 in debt. O'Bryan also distributed poisoned candy to his daughter and three other children in an attempt to cover up his crime; however, neither his daughter nor the other children ate the poisoned candy. He was convicted of capital murder in June 1975 and sentenced to death. He was executed by lethal injection in March 1984.

Herta Ehlert (née Liess; 26 March 1905 – 4 April 1997) was a female guard at many Nazi concentration camps during the Holocaust.

Ulrich Heinrich Emil Richard Greifelt (8 December 1896 – 6 February 1949) was a German SS functionary and war criminal during the Nazi era. He was convicted at the RuSHA trial at Nuremberg, sentenced to life imprisonment, and died in prison.

Karl Weinbacher (23 June 1898 – 16 May 1946) was a German manager and war criminal who was executed after conviction by a British war tribunal following World War II. He and his boss, Bruno Tesch, were the only businessmen to be executed for their roles in Nazi atrocities and the Holocaust in Western Europe.

David Hotyat was convicted of the killings of real estate promoter Xavier Flactif and his girlfriend and children. Their bodies were then taken to the forest and burned on a pyre. The massacre took place in Le Grand-Bornand, Haute-Savoie, France.

Jürgen Bartsch (born Karl-Heinz Sadrozinski; November 6, 1946 – April 28, 1976) was a West German serial killer who murdered four boys aged between 8 and 13 and attempted to kill a fifteen year old boy. The case of this sexual offender was the first in German jurisdiction history to include psycho-social factors of the defendant, who came from a violent early surrounding, to set down the sentence.

Kristen Heather Gilbert (née Strickland; born November 13, 1967) is an American serial killer and former nurse who was convicted of four murders and two attempted murders of patients admitted to the Veterans Affairs Medical Center (VAMC) in Northampton, Massachusetts. She induced cardiac arrest in patients by injecting their intravenous therapy bags with lethal doses of epinephrine, commonly known as adrenaline, which is an untraceable heart stimulant. She would then respond to the coded emergency, often resuscitating the patients herself. Prosecutors said Gilbert was on duty for about half of the 350 deaths that occurred at the hospital from when she started working there in 1989, and that the odds of this merely being a coincidence was 1 in 100 million. However, her only confirmed victims were Stanley Jagodowski, Henry Hudon, Kenneth Cutting, and Edward Skwira.

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.

Patrizia Reggiani (Italian: [paˈtrittsja redˈdʒaːni]; née Martinelli; born 2 December 1948) is an Italian convicted criminal and former socialite. She was convicted in a highly publicized trial of hiring a hitman to kill her ex-husband, Maurizio Gucci.