In Mexico City on the night of October 2, 1968, at least 200 students - among the thousands protesting election fraud and campaigning for university reform - were shot dead in a showdown with government troops in Tlatelolco Square. Hundreds more were arrested, and imprisoned for years. These events are not to be found in official histories, the government denies involvement and to this day no one has been held accountable. Paco Taibo was a member of the crowd that night and went on to become an international literary figure; 68 is his account of the events of October 2.