Well, he had two young children.  Normally living next to a park is considered to be a good thing for a family with young kids.

It sounds like the skate park is attracting an unsavory element.   The really tragic thing is that he most likely killed a totally innocent man, who had nothing at all to do with all of the harassment and racial name calling he received in the past.  

This seems like it was sort of a perfect storm just waiting to happen: a tragedy, that unfortunately no one could see coming.

The Sheriff's Dept does not have the necessary manpower to be able to patrol this park and monitor it.  Perhaps the best thing to do is to indeed remove the skate park.