Unfortunately shyt like this in Latin America is bound to happen anytime anywhere.
This, for example, happened yesterday near the neighborhood where i live:
Look at these mfs, drug cartels don't play and they don't care. It lasted all night and nobody dare to go there to intervene
Now, imagine you seeing this kind of this shyt through your window every day, having to live in a place like this and the next day people go about their business as if nothing had happened
I hope i'm wrong but i highly doubt the amerikkka will do anything about these four black people in op, r.i.p. to the victims.