Who is the man who caused the failure of the conspiracy hatched by the Church and the Pazzi family against Lorenzo and Giuliano de' Medici? Giovanni Battista da Montesecco, this is his name: a soldier of the papal army, hired as the Magnifico's killer.Assigned the task of telling us about Florence's darkest years, Montesecco now recounts the struggles and promises that led him to be a key player within the political games of the Italian Renaissance.