1. Mao Zedong (49-78 million deaths). During his first five years from 1949 – 53 he is said to have systematically killed between 4 to 6 million people by sentencing them to die or by sending them to “reform through labor” camps. His social programs the "Great Leap Forward" and the "Cultural Revolution" are two of the most ill-fated, poorly named, initiatives ever. The estimates on this program alone are 20 million deaths and estimates of the death toll are between 40,000 – 7 million depending on who you ask respectively. Finally, there is the 100 flowers movement where the government persecuted 500,000 people who were considered to be “dangerous thinkers”.

2. Josef Stalin (23 million deaths) The great purges and Ukraine’s famine.

3. Adolf Hitler (17 million deaths) Concentration camps and civilians in WWII.

4. Leopold II of Belgium (2-15 million deaths) Created a colony called the “Congo Free State”, enslaved its people, and forced them into labor plants.

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