Matricides

Nero Claudius Caesar Augustus Germanicus ( ; born Lucius Domitius Ahenobarbus; 15 December AD 37 – 9 June AD 68) was a Roman emperor and the final emperor of the Julio-Claudian dynasty, reigning from AD 54 until his suicide in AD 68.

In Greek mythology, Electra, also spelt Elektra (; ; ), is a princess of Mycenae and the daughter of Agamemnon and Clytemnestra. Famously, Electra and her brother Orestes attack and kill Clytemnestra to avenge their father's murder.

On December 14, 2012, a mass shooting occurred at Sandy Hook Elementary School in Newtown, Connecticut, United States. The perpetrator, 20-year-old Adam Lanza, shot and killed 26 people. The victims were 20 children between six and seven years old, and six adult staff members. Earlier that day, before driving to the school, Lanza fatally shot his mother at their Newtown home. As first responders arrived at the school, Lanza killed himself with a gunshot to the head. The incident is the second deadliest school shooting in US history behind the Virginia Tech shooting in 2007.

thumb|upright=1.1|Orestes being purified by Apollo on an Apulian red-figure bell-krater, 380–370 BC, now in the Louvre.

King of Egypt

shooting attack in Hanau, Germany

mythical son of Amphiaraus

king of Macedon from 297 BC until 294 BC, jointly with his brother Alexander V of Macedon

On February 10, 2026, a mass shooting occurred in Tumbler Ridge, British Columbia, Canada. On that afternoon, Jesse Van Rootselaar killed her mother and half-brother at their home before going to Tumbler Ridge Secondary School, where she killed six people and injured twenty-seven others before killing herself. Van Rootselaar was a former student of the school.

British murderer (1832-1873)

murder in Springfield, Missouri in 2015

thumb|Orestes Pursued by the Furies by [[William-Adolphe Bouguereau. Orestes is tormented by the Furies for the murder of his mother Clytemnestra.]]

flight

Canadian convicted murderer

fatal shooting of 16 people in Hungerford, U.K.

mass shooting

New Zealand murder case

fatal incident in Plymouth, United Kingdom in August 2021

Czech serial murderers

Colombian spree killer (1934–1986)

2003 murder in Buffalo, New York

2015 murder in Fuzhou, Fujian, China

shootings