McKinley died in the city eight days later and Theodore Roosevelt was sworn in at the Wilcox Mansion .
President William McKinley was shot and mortally wounded by an anarchist at the Pan-American Exposition in Buffalo on September 6 , 1901 .
President died in the city eight days later and Theodore Roosevelt was sworn in at the Wilcox Mansion .
President William McKinley was shot and mortally wounded by an anarchist at the Pan-American Exposition in Buffalo on September 6 , 1901 .