The peak was reached on August 17, 1960, when MNT members from Sarmiento National High School attacked Jewish pupils and injured a 15-year-old, Edgardo Trilnik, during the celebrations in honor of José de San Martín, Argentina's national hero in the war of independence. From then on, the MNT perpetrated acts of intimidation against the Jewish community, including bombing synagogues and other Jewish institutions and defacing the buildings with antisemitic graffiti. Following Eichmann's execution in 1962, the MNT launched 30 antisemitic attacks. On June 21, 1962, they kidnapped a 19-year-old Jewish girl, Graciela Sirota, tortured her, and scarred her with Swastika signs. In retaliation against this odious act, which raised public outrage, the DAIA on June 28, 1962, stopped all the activities of Jewish trade, supported by students (many high schools went on strike) and various political organizations, trade unions and intellectuals.