Because to some this is not a hate crime or racially motivated so who cares.... You can find the general attitude of some in this thread.
http://www.subsim.com/radioroom/showthread.php?t=194171 My guess is your answer from some is they were old and easy target. And that makes it all ok and better for all involved.
Al Sharpeton runs the streets with blinders on. Jessie Jackson does not see making any money from this incident. Case closed.