Who attacked the congressman Charles Sumner and beat him senseless with a cane?

Congressman Charles Sumner was attacked by Preston Brooks, a Democratic Congressman from South Carolina, on May 22, 1856. Brooks assaulted Sumner in the Senate chamber, using a cane to beat him senseless. This violent act was in response to Sumner's anti-slavery speech, which Brooks found deeply offensive. The incident highlighted the rising tensions over slavery in the United States during that period.