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BALTIMORE, MD - APRIL 29: An empty Oriole Park at Camden Yards is seen before Baltimore Orioles play the Chicago White Sox on April 29, 2015 in Baltimore, Maryland. Due to unrest in relation to the arrest and death of Freddie Gray, the two teams played in a stadium closed to the public. 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 Patrick Smith/Getty Images)

BALTIMORE, MD - APRIL 29:  An empty Oriole Park at Camden Yards is seen before Baltimore Orioles play the Chicago White Sox on April 29, 2015 in Baltimore, Maryland. Due to unrest in relation to the arrest and death of Freddie Gray, the two teams played in a stadium closed to the public. 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 Patrick Smith/Getty Images)