This shooting has had coverage in Australia but not much elsewhere.
And realistically, why should it? Why should an incident involving 2 deaths be international news? An estimated 150,000 people die every single day. So these 2 deaths represented a little over 1 second of the deaths that occur every day. Someone shot someone, then ended up getting shot. Is it sad? Yes. Would it be better if these things didn't happen? Certainly. Is it in any way relevant to the rest of the world? No.
Only 2 people died in the Sydney Siege. Only 12 people died in the Charlie Hebdo shooting. What's your logic there?