The early take would be that a group of anarchists on the fringes were somehow recruited by deep state type interests or possibly a foreign government to create a false flag narrative that would (in their hopes and dreams) bring trouble for Trump and perhaps more generally for America.
On the face of it, a group of Australians shooting Muslims in New Zealand has no rational connection to anything that has taken place in America.
I find the recent presence of Podesta in NZ very odd, something to be carefully evaluated and I hope by people well above my lowly station in life.
Between this and the unexplained plane crash in Ethiopia, there is also some good reason to keep a close eye on enemy states who may have chosen this time to destabilize the United States. It must be clear to them that the Mueller process is about to fizzle out in a telling silence.
I would not believe anything said in public about these events unless possibly confirmed by the President, beyond him I am not really sure there are many people in public life who are on our side any more. I feel like a lot of them are trying to turn us into criminals and enemies of their deep state with destructive fantasies growing in desperation. Do not be quickly troubled by anything in these bizarre times.