aboriginals in australia have always caused problems due to alcoholism, failure to adapt to western civilization and many other issues. they're not so much a 'gang' in that respect.
a very large percentage of the violent crimes in australia stems from aboriginies.
the fact is that if someone wants to cause violence they will.
due to the gun laws in australia it is very rarely that you hear of a shooting.
stabbings seem to be the method of delivery here