They were later arrested and faced several charges, including endangerment of a police officer, which was a result of the fact that officers had to climb on top of the trailer, which was a generator, in order to arrest them. Although there were several times as many police officers as there were protesters on the scene, it was seventeen minutes before the activists were arrested. They were represented by Ron Kuby, and all of the charges were later dropped. A few protesters who were semi-clothed were not arrested, and faced no charges. The activists later became one of the subjects in photographer Richard Avedon's last project, published in the New Yorker. Friday, August 27 Between 5,000 and 6,000 participants took part in the Critical Mass bicycle ride. The monthly NYC Critical Mass ride promoted by the environmental group Time's Up! occurs on the last Friday of each month and prior to this ride had usually attracted about 1,500 riders. Police eventually blockaded roads and arrested 264 people in relation to that event. Most of them were charged with disorderly conduct and held in custody for up to 72 hours. This was the first time the NYPD had made any significant arrests of Critical Mass participants in New York City. Sunday, August 29 United for Peace and Justice organized the main march of the week, one of the largest protests in U.S. history, in which protesters marched past Madison Square Garden, the site of the convention. The march included hundreds of separate contingents as well as individual marchers. One Thousand Coffins, a nationwide group of citizens, veterans and clergy, held a procession of one thousand full-scale flag-draped coffins commemorating the fallen troops. Several hundred members of Billionaires for Bush held a mock countermarch. Estimates of crowd size ranged from 120,000 (unnamed police spokesman) to over 500,000 (organizers, second unnamed police source). In March, 2007 NYPD Deputy Commissioner Paul Browne stated about the RNC protests: "You certainly had 800,000 on August 29." Organizers held a pre-march press conference in front of thousands on 7th Avenue. Several people spoke in opposition to the war in Iraq and Bush administration policies including Michael Moore, Jesse Jackson, Congressman Charles Rangel, and a father who had lost his son in Iraq. The whole event lasted six hours, with the lead contingent finishing the march long before thousands of people could even move from the starting point.