BALTIMORE, MD - APRIL 24:  Flanked by faith-based and community leaders, Baltimore Mayor Stephanie Rawlings-Blake speaks during a news conference at the City Hall on the latest development of the death of Baltimore resident Freddie Gray, one week after under custody in a police van, April 24, 2015 in Baltimore, Maryland. Gray, 25, was arrested for possessing a switch blade knife April 12 outside the Gilmor Homes housing project on Baltimore's west side. According to his attorney, Gray died in the hospital from a severe spinal cord injury.  (Photo by Alex Wong/Getty Images)