handcuffs to police headquarters, a forerunner of the perp walk that has since become a common practice in the city. It backfired, as the men were hailed as heroes by the Italian immigrant community they were paraded past. Charges against all defendants were later dropped for lack of evidence, and the killing remains unsolved. June 25, 1906 – Stanford White is shot and killed by Harry Kendall Thaw at what was then Madison Square Garden. The murder would soon be dubbed "The Crime of the Century". June 19, 1909 – The strangled body of Elsie Sigel, granddaughter of Civil War Union general Franz Sigel, 19, is found in a trunk in the Chinatown apartment of Leon Ling, a waiter at a Chinese restaurant, ten days after she was last seen leaving her parents' apartment to visit her grandmother. Evidence found in the apartment established that Ling and Sigel had been romantically involved, and he was suspected of the killing but never arrested. No other suspects have ever been identified. August 9, 1910 – Reformist Mayor William Jay Gaynor is shot in the throat in Hoboken, New Jersey by former city employee James Gallagher. He eventually dies in September 1913 from a heart attack. July 4, 1914 – Lexington Avenue explosion: Four are killed and dozens injured when dynamite, believed to have been accumulated by anarchists for an attempt to blow up John D. Rockefeller's Tarrytown Kykuit mansion, goes off prematurely in a seven-story apartment building at 1626 Lexington Avenue. June 11, 1920 – Joseph Bowne Elwell, a prominent auction bridge player, and writer, was shot in the head early in the morning in his locked Manhattan home. Despite intense media interest, the crime was never solved (one confession to police was dismissed because the man who made it was of dubious sanity). The case inspired the development of the locked-room murder sub-genre of detective fiction when Ellery Queen realized that the intense public fascination with the case indicated that there was a market for fictional takes on the story. September 16, 1920 – The Wall Street bombing kills 38 at "the precise center, geographical as well as metaphorical, of financial America and even of the financial world." Anarchists were suspected (Sacco and Vanzetti had been indicted just days before) but no one was ever charged with the crime. November 6, 1928 – Jewish gangster Arnold Rothstein, 46, an avid gambler