Man, sorry to hear about your mum,
you got any description of these guys?
I've been living in the woden area almost all my life and it's so crappy to see how it's become.
Seriously, Australia needs to have tougher punishment, then re-educated them, there is no point in giving them a slap on the wrist and then ask if they have learnt their lesson. 'chop off a finger' put them in jail, then ask if they have learnt their lesson, and if they haven't learnt, next time it will be a hand.