Ah, well, I said my stuff on this case, and I don't see how further engagement should do me any good. So, instead of pointing fingers at others, I'm gonna do something to prevent things like these not to happen, if only with my two cents.
If I ever have children of my own(and we all pray that won't happen), I'm gonna teach them martial arts (and by that I don't mean just teaching them to kick asses, martial arts is about philosophy as well... strike only when defending yourself or others), and devote time to them to let them grow into fine individuals, that watch out for each other (now, I know martial arts aren't everything, the devotion of time means for overall, taking time to teach them rights and wrongs). It's not gonna help in this case, but if we all learn from this experience (as the saying goes, Wise men learn on other people's mistakes), we'll see just what consequences can bad parenting cause (after all, I'm sure their parents could see it somehow, or raise them in other way).
So, instead of just sitting here and writing, I'm gonna take this lesson in the real life, save it for the future.