Is it the victims fault that they were shot by the gangs because the gang members were too poor and repressed to make good decisions? Or is it the fault of the

Is it the victims fault that they were shot by the gangs because the gang members were too poor and repressed to make good decisions? Or is it the fault of the people actually committing the crimes? Our civilization is facing a severe inference/causality deficit, it would seem, in favor of self-destructive empathy, c.f. Nietzche's Master/Slave Morals Duality.