The comments there are pretty telling. People are really, really tired of this sort of black on white criminal behavior. It comes up any time there is an event of this sort, and the response is very vehement in any sort of unmoderated forum, I think because of the extreme bias in reporting of events of this nature.
Eventually the message is received that "others" can do as they wish without reprucussion, or with lesser reprecussion.
People will only take so much of that. It actually fuels racism. It fuels blacks to say whites deserve it (they must if its accepted) and it fuels whites to say blacks are violent etc etc. This is especially so when you combine it with the race card again and again.
It doesn't do anybody any good.