EJ339 Robert Macias (cq), 29, of Thornton, a protester against illegal immigration, yells through a line of Denver police at pro-immigration supporters at Civic Center Park Monday afternoon, May 1, 2006. Denver police kept the two sides apart to keep t
Ellen Jaskol, EJ339 Robert Macias (cq), 29, of Thornton, a protester against illegal immigration, yells through a line of Denver police at pro-immigration supporters at Civic Center Park Monday afternoon, May 1, 2006. Denver police kept the two sides apart to keep t (05/01/2006), [433394873] . Denver Public Library Digital Collections, accessed 20/07/2026, https://digital.denverlibrary.org/nodes/view/934747