I think people have been reading way too much into musical/subcultural choices in this thread. A few times it has been mentioned that the SM's musical tastes are 'inappropriate' for her age, or that the gloominess of the goth aesthetic might somehow be an indication of someone fascinated by death (implying perhaps that it means they are more open to killing others). I'm sorry, but this is really not worthy of the sleuthing that goes on here. Every day, fans of classical, country, hard-rock, punk, opera, funk, jazz, r&b, and gospel music commit countless horrific crimes. In those cases, as with this, the music is not the reason for their crimes. (Even in those few cases where musical/subcultural fanaticism has been linked to a crime, it usually conceals a deeper pathology.) Trying to make some sort of a connection between one's musical tastes and the crime s/he has committed does a disservice to the victim by pointing fingers at irrelevant factors rather than at the truth of the matter.
(Oh, and I believe it is 'Rob Zombie', not 'White Zombie'.)