One teen kills another, so naturally it's a "Facebook murder". The crime's purported cause was some Facebook wall postings. Q.E.D.
It must be Facebook, no matter what else is involved, like an interesting small group dynamic, starting with an offended couple ordering the alleged killer being order to do the deed via note. And:
[Jinhua] argued that he had been put under pressure by the girl and was unable to disobey her.
Huh: not "the mind-control murder", nor "the note murder".
Plus "Experts said he was suffering from a severe behavioural disorder with psychopathic tendencies." Mentally disturbed young man commits violence - hey presto, it's a Facebook atrocity!
(thanks to Ed Webb)