Pastor Jong Kim founded the school which -- among other classes -- taught Asian medicine. It should be no surprise that the shooter was Asian if the student body was largely Asian.
Still, if I was Korean I'd be ticked simply for having to hear more "Oh, those psycho people" stuff. How do I subscribe to a Korean comedy channel? Would be interesting to hear that commentary. Regardless, I see it as one guy had a meltdown rather than a problem with All Korean People.