So in Charleston, sum-dude was told to slow down when driving though a neighborhood. Being a thug, and taking offense at being told to behave, he left and returned with a gun…..(specifically a dreaded AR-15) and opened fire.  Dude had (had) issues with self control and anger, apparently….

A bystander, legally armed, ventilated him …ending the threat.. He is now at room temperature. 

So, since the perpetrator is a Black Man, a criminal, who could not legally own a gun, who was stopped from committing mass murder by a legal carrier of a firearm, I expect the US media to downplay and/or ignore the story.