Demonstrators destroy the windshield of a Baltimore Police car as they protest the death Freddie Gray, an African American man who died of spinal cord injuries in police custody, in Baltimore, Maryland, April 25, 2015. Protesters returned to Baltimore's streets Saturday to vent outrage over the death of Gray on April 12. AFP PHOTO/JIM WATSON (Photo credit should read JIM WATSON/AFP/Getty Images)Demonstrators destroy the windshield of a Baltimore Police car as they protest the death Freddie Gray, an African American man who died of spinal cord injuries in police custody, in Baltimore, Maryland, April 25, 2015. Protesters returned to Baltimore's streets Saturday to vent outrage over the death of Gray on April 12. AFP PHOTO/JIM WATSON (Photo credit should read JIM WATSON/AFP/Getty Images)