I totally disagree. Parents should be there for their kids, yes, but that does not mean that the parents must give up their lives to their children. Both of my parents work, and I never felt like they didn't have enough time for me. I know plenty of much worse-adjusted children with stay-at-home parents who feel trapped by their parent's constant supervision.
More to the point, it is totally self-rightous to claim that parents that work are doing it only to "buy a new Lexus every year." Maybe the parents both work so that they can give their kids braces when their teeth are crooked, and health care when they get sick, or to put them through college at a good school. Maybe the parent is just doing it because they like the challenge of having a job. I really don't see why working and having children must be mutually exclusive, and I'm so sick of hearing it, because it is obviously not true. Parents have responsibilities to their children, but having children does not mean that one person in the household must give up everything for them.
As for the parents of these kids, I feel sympathy for them. I kinda doubt that they were the ones that drove these kids to doing what they did, and I'm sure that this has been a devastating event in their lives. Perhaps they DIDN'T do anything wrong. We certainly don't know that they did. Until I hear otherwise I am going to sympathize with, not blame, the parents, for I'm sure that they are having a terrible time of all of this mess.