National Guard Activated to Calm Tensions In Baltimore In Wake Of Riots After Death of Freddie Gray

BALTIMORE, MD - APRIL 28: A phlanx of Baltimore policemen in riot gear form a line across the street from the burned CVS pharmacy the afternoon after citywide riots on April 28, 2015 in Baltimore, Maryland. Gray, 25, was arrested for possessing a switch blade knife April 12 outside the Gilmor Houses housing project on Baltimore's west side. According to his attorney, Gray died a week later in the hospital from a severe spinal cord injury he received while in police custody. (Photo by Mark Makela/Getty Images)