what is twains satiric purpose in portraying the people of bricksville in this way

Boggs's death focuses the reader's attention on a much more serious aspect of the society. Boggs is shot to death in front of a crowd of people, including his daughter. The disrespect Boggs showed to Colonel Sherburn hardly justifies murder. Twain further derides the society for is cowardly actions, as the mob ready to lynch Sherburn is easily manipulated and succumbs to cowardice.