Charles Sumner and Preston Brooks
Charles Sumner of Massachusetts gave a speech in 1856 called "The Crime Against Kansas", giving attention to Andrew P. Butler of SC who defended slavery. Summer called him the Don Quixote (look up Don Quixote by Cervantes if you don't know it. Quixote basically crusades for a nonexistent/lost cause) of slavery. This upset Butler's nephew Preston Brooks, a member of the House of Representatives from SC. Preston nearly killed Sumner several days after the speech by beating his head repeatedly with a cane. In the north Sumner became a martyr to the barbarism of the South, while in the South, Brooks became a hero. Many Southerners Preston's mailed him canes in support of what he did.