The most striking aspect of this terrible story is that there was an outbreak of mass hysteria and it resulted in a temporary loss of humanity by many people. Similar stories have emerged from all societies in all ages. It is not and never was intended to stir up resentment of any particular group other than the one, which was directly involved.
The first sentence of this thread, which has been tacitly endorsed by all subsequent posters, was intended to make that clear.
Despicable as the actions of this mob were, they were the result of abandoning basic, instinctive humanity and surrendering to herd instinct, superficially backed up by a psuedo morality. We are all appalled by these cases - wherever and whenever we hear them. Had the thugs in question called themselves Christian, Hindu, Jewish or Bhuddist, our outrage would have been no less.