The foundation of MIR took place in August 1965, in a constituent assembly held at the Chilean Anarchist's facilities in Santiago and in which less than a hundred persons participated, mainly from Concepción and Santiago. Here Luciano Cruz participated also for the first time together with Enríquez as militants of the same political organization. The document "La conquista del poder por la vía insureccional" ("the conquest of power through insurrection") with the first political-military theses of MIR and which was elaborated by Miguel Enríquez ("Viriatto"), his brother Marco Antonio ("Bravo") and Marcello Ferrada de Noli ("Atacama") was approved by the foundation congress. Miguel was then elected a member of the new organization's Central Committee, however he became officially MIR's chairman only in 1967. In this post as political leader MIR Miguel Enríquez remained until his death, when he was murdered by Pinochet's forces in October 1974.