Las fuerzas policiales avanzaban con los fusiles lanzagranadas, en Ferguson, en dirección de los manifestantes.
FILE - This April 1, 2012 file photo shows members of the audience holding signs of support as thousands gathered in downtown Miami demanding justice for Trayvon Martin during a rally that featured national civil rights leaders. The rally comes a day after thousands marched through Sanford, the Florida town where 17-year-old Martin was shot and killed in February. Protesters say they will continue holding marches and rallies until an arrest is made. Eric Holder, who is leading the federal response to the racial turmoil in Ferguson, Missouri, talks about the nation's civil rights struggles in a way none of the 81 previous U.S. attorneys general could _ by telling his own family story. (AP Photo/J Pat Carter, File)
A citizen peacekeeper tries to keep protesters back as police advance Monday, Aug. 18, 2014, in Ferguson, Mo. The Aug. 9 shooting of Michael Brown by a police officer has touched off rancorous protests in Ferguson, a St. Louis suburb where police have used riot gear and tear gas. (AP Photo/St. Louis Post-Dispatch, Christian Gooden)
Missouri National Guard personnel stand guard during a protest on West Florissant Avenue in Ferguson, Missouri on August 18, 2014. Police fired tear gas in another night of unrest in a Missouri town where a white police officer shot and killed an unarmed black teenager, just hours after President Barack Obama called for calm. AFP PHOTO / Michael B. Thomas
Un hombre es detenido por la policía durante una protesta en Ferguson, St. Louis.
