The motives which prompt a killer to do away with a public figure are frequently anything but clear. On the other hand, the identity of such an assassin rarely is in doubt. The assassin himself sees to that, in obvious eagerness to attain recognition as the central figure of a world-shaking event. President McKinley, for example, was shot down in full view of the throng that moved forward to shake his hand at the Pan-American Exposition in Buffalo. Czolgosz, his anarchist assassin, boasted of his deed, making no effort to escape. John Wilkes Booth, one cog in a large plot, did not withdraw in the dimness of the stage box from which he fired on Lincoln, but leaped into the footlights’ full blaze to posture and declaim: “_Sic semper tyrannis!_” In recent times the perpetrator of an unsuccessful attempt at mass assassination actually clamored for recognition. When the late Cardinal Mundelein became archbishop of Chicago in 1919, community leaders tendered him a banquet of welcome. At the very opening of the repast, during the soup course, the diners became violently ill. By great good fortune--probably because so much poison had been introduced into the soup that even the first few spoonfuls caused illness before a fatal dose could be taken into the system--none of the diners lost his life as a result of the decision of an assistant cook, Jean Crones, to do away with the leaders of Catholicism in Chicago. The cook made good his escape. He has never been apprehended. But for days he sent a letter each morning to the newspapers and to the police telling just how he had kneaded arsenic into the dumplings he had been assigned to prepare for the soup, how he had later bleached his hair with lime whose fumes almost overcame him, in just which suburbs he had hidden out on which days, and so on. Short of surrendering to the police, he did all that lay in his power to identify himself as one who had attempted a mass murder of unprecedented proportions. One could go down a long list of political assassinations throughout the world during the past century, and find that almost without exception the identity of the extroverted killer was not a matter of the slightest doubt. No one questions the fact that a Nazi named Planetta murdered Engelbert Dollfuss in his chancellery, that Gavrilo Prinzip shot the Archduke Francis Ferdinand in Sarajevo, or that President Castillo Armas of Guatemala was killed by a Communist among his bodyguards, Romero Vasquez, who underscored his part of the plot by committing suicide.