One of the observations I've made regarding discussing this case (and some others) has to do with putting down people of low SES or who live in trailer parks/trailers, whether nice trailer parks or not-so-cared-for trailers. I think we should remember that here on the web, we have no idea who is behind that other screen name. I am sure there are many folks on here from low SES and/or who live in trailers who have not been bold enough to speak up. I have extended family living in trailers and who are very low on the SES ladder. And they are some of the most loving and giving people I know.
As far as criminal behavior and low SES, that has been disputed and researched time and time again. I wish I had more journals at my fingertips but I do not, so I googled it and came up with the following abstract:
There's more research out there somewhere, as I recall from my graduate studies while working on my PhD in psychology. I am now a psychologist but as a busy working mom, I don't have time at the moment to go dig them up - lol! But I hope this helps dispel the myth somewhat. I hope I'm not bringing up a subject that will cause more disharmony, but I felt compelled to say something. It's no fun to be stereotyped.