 CHAR: At the end of the movie agent Preston says: "I wonder if well  ever know who the hell he really was", thereby saying that the true  identity of the Jackal remained a mystery the FBI. But Isabella  Zanconia said that the Jackal was definitely an American, who had  received some kind of special military training. If this were true,  then the American authorities would have his fingerprints on record,  and he would have been identified at the end of the movie.