Kang Kek Iew
Influences from the French Revolution led many who studied in Paris to believe that Marxist political theory that was based on class struggle could be applied to the national cause in Cambodia. The premise of class struggle sowed the ideological seeds for violence and made violence appear all the more necessary for the revolution to succeed. In addition, because many of the top KR officials such as Pol Pot, Khieu Samphan and Kang Kek Iew (also known as Duch) were educators and intellectuals, they were unable to connect with the masses and were alienated upon their return to Cambodia, further fuelling their radical thought.