Given the location (near Volunteer Park), that’d be Capitol Hill. Not a large black population, but a TON of college students, artists, and homosexuals. I suspect crack or meth addicts, looking to finance their next score.
Cap Hill is also infested with liberals with money, especially on the northern end of the neighborhood, which is where the victim (read: idiot) lives. Lots of old houses, some aparmented out, and fairly pricey to live there.
I suspect that the victim and criminal populations are not necessarily completely disjoint. Middleclasskids might be tempted to try what appears to be a low risk adventure. Someone needs shift the calculus of crime distinctly to increase the risk side of the equation. The civil authorities in Seattle seem clearly not to be up to the challenge.