Have NZ authorities definitively linked the manifesto to the killers?

[Cattledog]

1. They were posted right before the shooting.

A white-nationalist manifesto

Before the shooting, someone appearing to be the gunman posted links to a white-nationalist manifesto on Twitter and the online forum 8chan. The 8chan post included a link to what appeared to be the gunman’s Facebook page, where he said he would also broadcast live video of the attack.

The Twitter posts showed weapons covered in the names of past military generals and men who have recently carried out mass shootings.

In his manifesto, he identified himself as a 28-year-old man born in Australia and listed his white nationalist heroes.

Writing that he had purposely used guns to stir discord in the United States over the Second Amendment’s provision on the right to bear arms, he also declared himself a fascist. “For once, the person that will be called a fascist, is an actual fascist,” he wrote.

https://www.nytimes.com/2019/03/14/world/asia/new-zealand-shooting-updates-christchurch.html?action=click&module=Top%20Stories&pgtype=Homepage