​CZOLGOSZ, LEON, an American assassin; born about 1874, of Polish-German ancestry; worked at various trades in the United States and became affiliated with anarchists through the teachings of Emma Goldman (q. v.). On Sept. 6, 1901, while President McKinley was holding a public reception at the Pan-American Exposition in Buffalo, N. Y., Czolgosz treacherously shot him twice. On Sept. 14, the President died; on Sept. 23 Czolgosz was brought to trial; on the 26th was sentenced to death, and was electrocuted in the prison of Auburn, N. Y., Oct. 29, 1901.