John Joseph Most was a German-American anarchist and orator, who in the late 19th century began to advocate the use of violence to achieve revolutionary political and social change. He is best known for popularizing the strategy of "propaganda of the deed," which promoted direct action against individuals or institutions (including the use of violence) to force revolutionary change and inspire further action by others. Wikipedia
The definitive Wikipedia entry for Johann Most. Wikipedia is the biggest multilingual free-content encyclopedia on the Internet. en.wikipedia.org/wiki/Johann_Most