EST Emotions spill over into violence at a two-hour protest by several hundred to a thousand firefighters near City Hall, beginning at West and Chambers Streets, to protest Giuliani's October 31st ruling to reduce the number of firefighters permitted at the World Trade Center site from 64 to 25. After firefighter Mike Heffernan, brother of John Heffernan, retired fire captain Bill Butler, father of Tommy Butler, and Kevin E. Gallagher, the president of the Uniformed Firefighters Association, speak, the assembled protesters push aside a barricade and begin walking south down West Street. At the next barricade the police move in, punches are thrown, and firefighters handcuffed.