The investigation initially focused on the "Cyprus is Turkish" Association (CTA). CTA detainee, and spy, named Kamil Önal had one of his CTA associates burn an intelligence report originating from the National Security Service (NSS) that was at the CTA office. In addition, a member from the Kızıltoprak branch, Serafim Sağlamel, was found to be carrying an address list of non-Muslim citizens. However, on September 12, the government blamed Turkish Communists for the pogrom, arresting 45 "card-carrying communists" (including Aziz Nesin, Kemal Tahir, and İlhan Berktay). This type of "false flag" anti-Communist propaganda was a staple of the Counter-Guerrilla. When opposition leader İsmet İnönü delivered a speech criticizing the government for rounding up innocent people instead of the actual perpetrators, the communists were released in December 1955. An angry Menderes said that İnönü would not be forgiven for his speech, pardoning the communists.