The Charlotte Observer doesn't give the race (or any other description) of the suspect, but his race was probably the same as most of the people who went wilding over Memorial Day weekend (including in Charlotte, where one man was killed and 70 people arrested after a gang melee).
The readers of the Observer's website aren't as clueless as the commissars of political correctness. The article has a postscript:
Editor's note: Comments have been disabled because of repeated violations of site policies. Please refrain from profanity, obscenity, racist remarks, spam, name-calling or attacking others for their views.
In other words, someone mentioned that the gunman was black, which prompted a discussion of blacks and crime in the comments, leading the horrified liberal editors to shut down the comments to prevent the spread of politically incorrect ideas.