The experience of interdependence is nonviolence, peace, an end to suffering. That experience is running headlong into all forms of dominance/subordination/devaluation which lead to violence. We have to remember our humanity, and that others have been dehumanized by these forces.
There are layers. This man clearly devalued Asian women. His violence was an act of domination. He was deeply conflicted about sexual impulses, and felt he had to dominate them by casting them out. The worst of fundamentalist inhumanity to self and other.
On a metaphorical level, perhaps he couldn't relate to his eros. He had to purge it by killing others. Isla Vista was about frustrated sexuality. #atlantaspa is also about desire not being desirable. "Love is unmoving. Only the cause and end of movement."
So an extraordinarily immature relationship to love and desire, mixed with racism - which is itself an avoidance of love and equal relationship. That's my two cents.