This is terrorism committed by a white man, but unfortunately, a lot of people around the world have seen what Muslims do to others.
They come to the West and try and impose their laws, they betray the countries that give them everything, these Jihadi brides who support terrorist groups, but then want to return to Australia when things are bad.
This is going to happen more and more and if Muslims can't see this then it will be very bad, to all Muslims do not come to the West go and live happily in your wonderful, rich, clean, safe countries the West is no longer safe.
And that's a good thing, we don't want it.