If you haven't been living under a rock the past few weeks, at least three of those four names should look very familiar to you. The tragic story of Kenneth Mark is equally important and ground breaking, especially to you "stop snitching" idiots out there, but not getting as much press as it should.
Remember when Obama got elected and people said we are now living in a "post-racial" (North) American society? Guess you can still shoot and kill a Black kid and not even get arrested for it. Remind me not to whistle and/or look at any White women in public.