His manifesto is horrific, weird, and interesting.
http://milnenews.com/2019/03/15/christchurch-mosque-shooter-brenton-tarrants-full-manifesto/
Sooo...”Green Nationalism is the only true nationalism”, he hates corporations, and “the nation with the closest political and social values to my own is The People’s Republic of China”.
He is a Leftist. He is too stupid to realize he is a Leftist, but he is.
He also has no idea what “conservatism” is. He thinks “conservatism” means to “conserve” something, most likely the “status quo”.
He is a Leftist nut job, plain and simple. That’s it.