José David Alfaro Siqueiros (December 29, 1896 in Camargo, Chihuahua, Mexico - January 6, 1974 in Cuernavaca, Morelos, Mexico) was a social realist painter, known for his large murals in fresco that helped establish the Mexican Mural Renaissance, together with works by Diego Rivera and José Clemente Orozco, and also a Stalinist who participated in an unsuccessful attempt to assassinate Leon Trotsky in May 1940.
Source: http://en.wikipedia.org/wiki/David_Alfaro_Siqueiros
