The differentiation is interesting. To me, gang violence doesn't so much count in death statistics because it's almost never random, and random gun violence is what people fear and talk about when they point to statistics. (I didn't state that very well.)
Don't join a gang and don't kill yourself and your odds of getting shot drop through the floor. NOT that those deaths should be dismissed! But when people talk about, "I might get shot walking down the street.", that's bull.
What the distinction really means is, "Brown people killing each other doesn't count." The dog whistle is audible to me. I've never heard anyone online or IRL point this out, but the racism is clear as a bell.