Tariq Nasheed tried the same shit a year or so ago, when some niglet was found hanging on a bridge. Of course, as a shock to absolutely no one, it was proven to be a suicide, and everyone stopped talking about it.
But, since there are actual protests going on, this one will definitely have longer legs. I think it'll be a situation where it will be proven to be a suicide, and forgotten to a degree, but his "lynching" will still be a peripheral incident in the BLM mythos, similarly to how the "gentle giant" Mike Brown is still said to have had his hands up.