The Argentine Israelite Mutual Association suffered a terrorist attack with another car bomb on 18 July 1994, killing eighty-five people. It was the most destructive terrorist attack in the history of Latin America. The attack was universally condemned and 155,000 people demonstrated at the Congressional plaza, but Menem did not attend. The legal case stayed unresolved during the remainder of Menem's presidency. Menem had suggested, in the first press conference, that former "Carapintada" leaders may be responsible for the attack, but this idea was rejected by the minister of defense several hours later. The CIA office in Buenos Aires initially considered it a joint Iranian-Syrian attack, but some days later considered it just an Iranian attack. Menem and Mossad also preferred this line of investigation. As a result of the attack, the Jewish community in Argentina had increased influence over Argentine politics. Years later, the prosecutor Alberto Nisman charged Menem with covering up a local connection to the attack, as the local terrorists may have been distant Syrian relatives of the Menem family. However, Menem was never tried for this suspected cover-up, and on 18 January 2015, Nisman was found dead of a gunshot to his head at his home in Buenos Aires.