That same year, Croatian historian and anti-Yugoslavist intellectual Milan Šufflay was assassinated in Zagreb. As a response, Albert Einstein and Heinrich Mann sent an appeal to the International League of Human Rights in Paris condemning the murder, accusing the Yugoslav government. The letter states of a "horrible brutality which is being practiced upon the Croatian People". The appeal was addressed to the Paris-based "Ligue des droits de l'homme" (Human Rights League). In their letter Einstein and Mann held the Yugoslav king Aleksandar explicitly responsible for these circumstances.