Aye, easy on the racial predjudice.
I suspect that they're only bothered about attacking 'Westeners' and causing as much disruption as possible. I don't think that there's much about their killing that's careful or selective beyond that.
I'll be very disappointed if, after the calmness and stoic response of the population down here today, there were any stupid race related attacks or riots in any part of the country as petty vengence.