BALTIMORE, MD - NOVEMBER 30:  William Porter, one of six Baltimore city police officers charged in connection to the death of Freddie Gray earlier in the year, walks to a courthouse for jury selection in his trial on November 30, 2015 in Baltimore, Maryland.  Porter is the first to go to trial in the death of Gray who died from an injury incured in the back of a police transport van on April 19. (Photo by Patrick Semansky-Pool/Getty Images)