Given the task definition and input, reply with output. In this task, you are given a context paragraph, a question based on that and corresponding answer of a question. Your task is to generate supporting fact/knowledge from context paragraph which helps in answering a given question.

Leon Frank Czolgosz (Polish: "Czogosz" ; May 5, 1873 October 29, 1901) was an American anarchist and former steel worker who assassinated U.S. President William McKinley in September 1901. Czolgosz was executed just over seven weeks later. Question: Edward Anthony Spitzka autopsied the brain of the American anarchist who assassinated which President? Answer: William McKinley
Leon Frank Czolgosz Polish: Czogosz ; May 5, 1873 October 29, 1901 was an American anarchist and former steel worker who assassinated U.S. President William McKinley in September 1901.