 Complete the following phrase:  Almirón was present at the Montejurra 1976 massacre in Spain of two left-wing Carlists, in which the Italian neofascist Stefano Delle Chiaie participated. According to Spanish lawyer José Angel Pérez Nievas, it is probable that Almirón participated  along with Stefano Delle Chiaie and Augusto Canchi  in the 1980 