Not much, apparently. Left-wing apologists in the media continue to misrepresent the facts in the Martin-Zimmerman case. The facts revealed during the trial indicate that Martin attacked Zimmerman, who defended himself by shooting Martin. Martin unfortunately died of his wounds.
Trayvon Martin was NOT murdered.
The verdict was not even close. No civil rights case was brought against Zimmerman due to lack of evidence. THERE WAS NO CASE.
Similarly, Darren Wilson was not indicted for the shooting of Micheal Brown because the facts of the case did not warrant prosecution.
The author conveniently neglects to mention other cases where justice served minority victims when the circumstances were different: Theodore Wafer, sentenced to 17 years, Michael Dunn, sentenced to life in prison, Markus Kaarma, sentenced to 70 years is prison.
The justice system works for most people, most of the time.