Nuño would have been in favor of the "walk" undertaken by the anarchist groups during the first weeks of the war, arguing that "expeditious justice strengthened the revolutionary morale of the people and engaged them in the struggle to life or death that we had engaged.”[4] As Felipe Sandoval would later state, Amor Nuño would have had almost total control over the Madrid Checa.
[6][7] Nuño reportedly participated in the November 7 meeting with representatives of the CNT and the JSU that served as preparation for the subsequent Paracuellos massacres.
[9] At that time, Amor Nuño had a romantic relationship with the daughter of a nationalist soldier,[10] whom he had made his personal secretary and even brought to Board meetings—which meant she had access to important information.
In this sense, Jorge Martínez Reverte pointed out that Amor Nuño left his post due to "fear".
Paul Preston maintains that he was arrested in Alicante at the end of the war, and died in the General Security Directorate [es] in Madrid as a result of the beatings to which he was subjected.