It's culture clash. Many poor asians move to affordable neighborhoods. That usually means black or hispanic. They work hard in menial jobs, save up, and open businesses. They have their kids work in the family business while also sending them to after-school tutoring full of other asian kids.

In the black community, this isn't seen as success. The academic success isn't seen as a product of hard work and stress. It's seen as cheating or hoarding academic resources. The economic success isn't seen as business acumen. It's seen as exploitation and extraction of the little wealth that blacks do have. Due to poor impulse control, this resentment quickly turns into violence.