Amaya was oriented to advise workers and unions . At the beginning of the decade of 1970 , it begins to defend to political prisoners stopped in the prison of Rawson , standing out among them the union leader Agustín Tosco . In 1972 there was a flight of political prisoners from the Montonero guerrilla organizations and Revolutionary People 's Army , during which a large group was trapped in the Trelew airport . On that occasion , the fugitives demanded the presence of radical lawyers Mario Amaya and Hipólito Solari Yrigoyen as a guarantee . A few days later several of the detainees would be killed in what is known as the Trelew Massacre . Shortly after Amaya was arrested by the dictatorship that governed at that time
Trelew Massacre
Trelew massacre
Mario Abel Amaya