Its hard to say anything appropriate in such situations, we can start to blame The states laws, throw blame to god know what's and whom, blame each others, start to politicize and it will going to happen eventually. All i saying is to wait a few days out of decency, and then the shock and grief subdued we can talk about it and in the matter of fact it is wise because when something like this happen, there are things what we must think over, the conclusion must be drawn.
But until than?
Racism / supposed racism?

Yeah, better to avoid this just don't jump to conclusions, although if this is the the real case? You can't lie or be silent about it.