David Alfaro Siqueiros

David Alfaro Siqueiros (born José de Jesús Alfaro Siqueiros; December 29, 1896 – January 6, 1974) was a Mexican social realist painter, best known for his large public murals using the latest in equipment, materials and technique. Along with Diego Rivera and José Clemente Orozco, he was one of the most famous of the "Mexican muralists".

Siqueiros was a member of the Mexican Communist Party. Although he went to Spain to support the Spanish Republic against the forces of Francisco Franco with his art, he volunteered and served in frontline combat as a Lieutenant Colonel in the Army of the Republic through 1938 before returning to Mexico City. In 1940, he led a failed assassination attempt on Leon Trotsky in which Trotsky's 14-year-old grandson was shot and American communist Robert Sheldon Harte was executed. After spending several months on the run from Mexican authorities disguised as a peasant, Siqueiros was eventually apprehended in Jalisco, although he was freed shortly thereafter and never brought to trial.