Who was the most notorius killer?

Answer 1

It really is a matter of perspective, and there are different types of homicide and the people who commit them.

For war crimes, many would say Adolf Hitler and Joseph Stalin are right up there. But, one must also consider Pol Pot, Idi Amin Dada, Saddam Hussien, and Mehmed Talaat Pasha Bey, as well as a host of other government leaders of nations around the world and throughout history. The surprise attack on Pearl Harbor in 1941 resulted in 2,402 killed1, 247 wounded.

On 11 September, 2001, terrorists from al-Queda ended the lives of nearly 3,000, wounding over 6,000.

Jack The Ripper is the most infamous individual serial killer. John Wayne Gacy was one of the most prolific along with Wayne Williams, Ted Bundy, and Jeffrey Dahmer.

Charles Whitman killed sixteen and wounded thirty-two from a clock tower on the campus of the University of Texas. Eric Harris and Dylan Klebold killed twelve students and a teacher at Columbine High School. Dr. Nidal Malik Hasan killed thirteen and wounded 29 at Ft. Hood, Texas. Jared Lee Loughner shot nineteen people at a Tuscon, Arizona shopping center, six of them died.

Aileen Wuornos takes first place as a female serial killer, however Countess Elizabeth Báthory de Ecsed, of Hungary is credited with as many as 650 victims.

Answer 2

The most notorious serial killer would have to be Jack The Ripper, with Ted Bundy coming in a close second. Adolf Hitler wins the first spot for war crimes and/or crimes against humanity.