1) She comes across terribly in the video, very belligerent and impossible to deal with.
2) It's an edited clip, we have no idea of the context - she might have been responding to a respectful, reasonable person, or she might have been reacting to a right-wing troll who just happens to be black.
3) Regardless it's a tragedy when an innocent bystander gets killed
4) It's poor form to post a video of a murder victim when seemingly the only reason to do so is to make them look bad
With that said, I'd love to know the honest motivation behind a response like this:
Silly woman should've just shut up and know her place, right ?
I mean wtf is that? It's seriously something I'd expect to come out of a Russian troll bot. It's like he's picking numbers out of the culture war bingo machine.