Right. I mean, if the shooter(s) were Islamic terrorists... then I guess I could see some sort of immigration conversation.
But the victims were Muslim. I don't think them being in NZ meant they were asking for it. Or how 9/11 means much, at all, to the killing of Muslims in New Zealand.
...and the shooter was a Australian immigrant? Visitor? Either way, he wasn't native.
Anyhoo, I'm not sure what immigration has to do with anything other than that shooter is the type of person I wouldn't want in my country.