President William McKinley, the 25th President of the United States, was assassinated on September 6, 1901, by Leon Czolgosz, an anarchist. The assassination took place at the Temple of Music during the Pan-American Exposition in Buffalo, New York. McKinley was greeting the public when Czolgosz approached him, concealed a revolver in a handkerchief, and shot McKinley twice in the abdomen. Despite initial optimism about his recovery, McKinley's condition worsened due to gangrene caused by the bullet wounds.

After eight days of struggling with his injuries, President McKinley succumbed to his wounds on September 14, 1901. His assassination led to an outpouring of national grief and brought attention to the growing anarchist movement in the United States. Vice President Theodore Roosevelt was sworn in as President following McKinley's death. The incident also prompted increased security measures for the protection of future presidents.

After the Exposition closed, the Temple of Music and the other plaster buildings were torn down, and the area between Delaware Avenue and Elmwood Avenue was turned into a residential subdivision bisected by the Lincoln Parkway. The Buffalo and Erie County Historical Society placed a stone and marker on a traffic island dividing Fordham Drive, near that parkway, to mark the area where the Temple of Music was located. "But the spot where the assassination took place has been the subject of speculation for much of the century," a reporter would write more than 87 years after the event, adding, "Some say it's a toss-up between 30 and 34 Fordham Drive, while others say it occurred across the street at 29 Fordham or at the end of the island.

Sources:

1. Miller Center, University of Virginia. "William McKinley: Assassination." Miller Center. https://millercenter.org/president/mckinley/assassination
2. History.com Editors. "President William McKinley is shot." History.com. https://www.history.com/this-day-in-history/president-william-mckinley-is-shot
3. https://en.wikipedia.org/wiki/Temple_of_Music#cite_note-6