Mass Murderer
Overview
A mass murderer (Korean: 학살자; Hanja: 虐殺者) refers to an individual or group that collectively kills a large number of innocent people. This is considered a crime against humanity under international law and can be punished as war crimes, genocide, or crimes against humanity. The actions of mass murderers constitute a grave challenge to humanity and international peace, leaving deep trauma throughout history.
Main Content
Definition and Concept of Mass Murderer
Legally, a mass murderer refers to a person who carries out organized and systematic mass killing targeting a specific group or civilian population. In international law, "massacre" is usually treated under categories such as genocide or crimes against humanity, but strictly speaking, the term "mass murderer" is closer to a social and political concept than a legal term. Article 7 of the Rome Statute of the International Criminal Court defines murder, extermination, enslavement, etc., of a civilian population as crimes against humanity, and acts of massacre may fall under this. In addition, mass murderers often act under the direction or tacit consent of state power or are motivated by extreme ideology.
Historical Cases
Representative mass murderers of the 20th century include Adolf Hitler and his followers in Nazi Germany, who committed the Holocaust. Approximately six million Jews and millions of others were massacred. In Cambodia, the Khmer Rouge regime led by Pol Pot massacred about two million people in the "Killing Fields." In Rwanda in 1994, Hutus indiscriminately killed about 800,000 Tutsis. During the Bosnian War, the Srebrenica massacre also claimed the lives of more than 8,000 Muslim men and boys. These cases share a common trait: massacres were perpetrated with the intent to annihilate specific ethnic, religious, or racial groups.
Legal Responsibility
Mass murderers have been indicted and punished for war crimes and crimes against humanity at the International Criminal Court (ICC), the International Criminal Tribunal for the former Yugoslavia (ICTY), and the International Criminal Tribunal for Rwanda (ICTR). For example, the ICTR convicted the main masterminds of the Rwandan genocide, and the ICTY indicted Slobodan Milošević, but he died during trial. Since its establishment in 2002, the ICC has handled several massacre cases, focusing on holding individuals criminally accountable. In addition, the emergence of the international norm of the "Responsibility to Protect (R2P)" has led to discussions about international intervention to prevent massacres. However, there is also criticism that actual prosecutions remain limited due to the political interests of major powers.
Psychological Characteristics
Research on the psychology of mass murderers emphasizes authoritarian personality, extreme ideology, obedience and conformity, or groupthink. Stanley Milgram's obedience experiment showed that ordinary people can commit cruel acts under authority. Philip Zimbardo's Stanford prison experiment suggested that specific roles and environments can transform individuals into violent actors. Mass murderers dehumanize victims to dull moral conflict and often commit "banal evil" within bureaucratic organizations. Hannah Arendt analyzed figures such as Eichmann using the concept of the "banality of evil."
Prevention and Memory
To prevent the recurrence of massacres, the international community uses truth and reconciliation commissions, official apologies, legal punishment, and education. South Africa's Truth and Reconciliation Commission investigated human rights abuses under the apartheid regime and sought reconciliation between victims and perpetrators. Organizations such as UNESCO also play a role in preserving the memory of massacres and promoting human rights education. Since 2024, technologies for preserving evidence and identifying perpetrators using digital archives and artificial intelligence have been developed.
Latest Trends
In 2024 and 2025, international judicial efforts related to massacres have become more active. There is a case in which the ICC issued arrest warrants regarding civilian massacres in Bucha, Mariupol, and elsewhere during Russia's invasion of Ukraine. Myanmar's military forces are being tried at the International Court of Justice (ICJ) in 2024 for the mass genocide of Rohingya Muslims. The ICJ is also reviewing a lawsuit filed by South Africa against Israel over violations of the Genocide Convention regarding its attacks on the Gaza Strip. In 2025, large-scale human rights abuses resulting from the conflict in the Democratic Republic of the Congo are being newly highlighted in several African countries. Meanwhile, AI-based satellite imagery analysis is contributing to the rapid collection of evidence at massacre sites, and hate speech on social media is also being used as a signal to predict the possibility of massacres.
Related Topics
- [[Crimes Against Humanity]]
- [[International Criminal Court]]
- [[Genocide]]
- [[War Crime]]
- [[Truth and Reconciliation Commission]]