I don't think this is really about segregation by wealth ... the
chap was not "poor" ... his parents live in a pretty comfortable
house and owns a dry cleaning business in the states ...
reports say that he was picked on and bullied for being a small,
scrawny asian from the time he came over ... his anger was just a
flimsy armour he had on ... the biggest tragedy was that no one
really cared about him ... till it's too late ... 
