Noun
a person who is responsible for the deaths of many victims in a single incident
Source: WordNetThe Bible tells us to be like God, and then on page after page it describes God as a mass murderer. This may be the single most important key to the political behavior of Western Civilization. Robert Anton Wilson
Even in my most inflamed moment I never supported a racist mass murderer. Bernardine Dohrn
Clinton, Kennedy, they all carried out mass murder, but they didn't think that that was what they were doing - nor does Bush. You know, they were defending justice and democracy from greater evils. And in fact I think you'd find it hard to discover a mass murderer in history who didn't think that. Noam Chomsky
GG Allin: I could have possibly been a serial killer or a mass murderer. GG Allin
Bin Laden was not a Muslim leader; he was a mass murderer of Muslims. Indeed, al Qaeda has slaughtered scores of Muslims in many countries, including our own. So his demise should be welcomed by all who believe in peace and human dignity. Barack Obama
Putin is not a mass murderer. But, having said that, he is a product of the KGB, and the KGB was, of course, the secret police force of the Soviet Union. Anne Applebaum