I'm black too, and let's be honest here. The burden of proof that is being posed by folks on HN isn't because they are actually seeking proof, it's so that they can say

>"You don't have sufficient evidence, so we are going to go with whatever non-race based reason I can find as the cause"

Seeking evidence about an event is a worthy activity, but becomes a fools errand when the audience is sympathetic if not outright supportive of the wrongdoers.