(QUOTE : Others, while not condoning the girl's murderous rage, have suggested the part played by the Watchtower. This is nonsense. The difficulties between youth and their parents go back millenia and cross all cultures and religions).
RESPONSE :
You're kidding, right? You've likely seen literally hundreds of threads discussing the harmful and damaging policies of high-control groups like the JWs, discussing the effects of shunning on effected youth, policies and beliefs that shelter/cover up sexual molestation, no blood transfusions, no flag salute, national anthem, no sports, worldly friends, etc.
Not surprisingly, such an environment actually DOES have an effect on SOME youth, even driving them to the brink of suicide (and many, over the brink, when they sense no other way out). You may have even experienced it personally, or seen it in others who've suffered as a result of such practices and policies.
Yet when someone get pushed past their breaking point, suddenly some are not willing to CONSIDER linking causes with effects, even denying it as a possibility? (The clinical psychologist was SPECULATING, of course, but not without reason: although we don't know if there's any actual evidence of WHY she was driven to a homicidal rage, he was speaking based on a high-index of clinical suspicion, based on past experiences with patients.)
It has nothing to do with one's political leanings, but with COMMON SENSE: it's hard NOT to link an ultra-conservative approach to life (eg anti-education policies, misogyny/sex abuse cover-ups, etc) being harmful to some personality types, where being raised in almost any other environment would lead to very different outcomes. That's exactly WHY society has decided that some children should be removed from their parents where there's abuse (emotional/sexually/physically): it's an affront to basic human decency to let them be raised in unhealthy environments, and it's needed to reduce the incidence of tragic outcomes like this.
Of course, we wouldn't even be talking about the girl if she had done the "socially-approved thing" and only killed herself, but instead she killed her mom in a head-line grabbing manner. If she hadn't done that, it wouldn't have made the headlines, and JWs would say, "oh well, demon possession drove her to kill herself; she was a bad seed anyway", and the real truth wouldn't come out; the JW would be free to continue with their harmful backwards Luddite policies.