Juan Arnol Kremer Balugano

Juan Arnol Kremer Balugano, also known as Luis Mattini, was a member of the Ejército Revolucionario del Pueblo (ERP) and is recognized for his involvement in guerrilla activities during Argentina's political turmoil in the 1970s. He has been implicated in the planning of violent attacks, including the notorious assault on Captain Humberto Viola's family.