The race and socioeconomic status of all the women targeted is the same, across multiple victims, right? We don't know for certain (because we're not useless fucking deviants) if that commonality is rooted in opportunity or fetish. My guess is both, because power is so inextricably involved in rape. But whatever lens we use to interpret that data, or whatever broader social conclusions we want to draw from it, it is certainly significant.
Anyway, fuck that guy's worthless life. When I'm dictator, I'm going to feed him to my pet panther. Or maybe serial rapists get the cobra room, I haven't worked the details out with the palace architect yet.