Who is Jose Ignacio Saenz de la Barra from The Autumn of the Patriarch and what is their importance?

Jose Ignacio Saenz de la Barra is thirty-two-years-old man, as well as a remnant of the families of the feudal regime that ruled the nation before the General. He meets with the General and tells him that he will be able to find and kill those behind the assassination of Leticia Nazareno and Emmanuel, her son.

Jose is almost always accompanied by his ferocious, man-eating Doberman dog, named Lord Kochel. He arranges assassinations of those responsible, and then has thier heads delivered to the General. He then forms a new secret service and torture bureau, which he runs out of the old Dutch Mental Asylum.