BALTIMORE, MD - APRIL 30 :  A group of curfew violators attend a demonstration over the death of Freddie Gray at Pennsylvania Avenue in Baltimore, USA on April 29, 2015. Protests following the death of Freddie Gray from injuries suffered while in police custody have turned violent with people throwing debris at police and media and burning cars and businesses. (Photo by Cem Ozdel/Anadolu Agency/Getty Images)