Later, according to media reports in 2004, taken up again in 2007, Cossiga, in a letter addressed to Enzo Fragala, leader of the National Alliance section in the Mitrokhin Committee, suggested Palestinian involvement of George Habash's Popular Front for the Liberation of Palestine and the Separat group of Ilich Ramirez Sanchez, known as "Carlos the Jackal". In addition, in 2008 Cossiga gave an interview to "BBC" in which it reaffirmed his belief that the massacre would not be attributable to black terrorism, but to an "incident" of Palestinian resistance groups operating in Italy. He declared also being convinced of the innocence of Francesca Mambro and Giuseppe Valerio Fioravanti, the two neo-fascist terrorists accused of the massacre. The PFLP has always denied responsibility.