What nobody, apart from John Derbyshire is pointing out, is that the age of the women who were shot makes it unlikely they were sex workers; they were far more likely to be cashiers / owners of the parlors in question.

Given that the Asian massage industry is notorious for sexual slavery / trafficking women an is is quite possible the establishments he targeted (and their owners) are not as innocent as the media is making out

All conjecture at this point and obviously nobody deserves to be murdered.

Asian 'massage' workers however would be better protected by investigating the exploitative nature of the industry than force meming white on Asian violence.

Edit: See also The China to King Buffett Pipeline, an article from Peak Stupidity about Chinese people smuggling.