Is it true: Christchurch mosque attacks / Tarrant 'Great Replacement' manifesto (Mar 15 2019)?

Partly — it's more complicated than the claim suggests.

Judged against the claim that an organised far-right network shaped, funded and connected with Tarrant and planned, directed or helped carry out the attack, the record is partly true. Documented: the Royal Commission found it likely that far-right online communities (4chan, 8chan) and much time on similar YouTube material shaped his thinking, and it recorded at least 14 donations to overseas far-right groups, including to Austria's Martin Sellner, with whom he exchanged emails in January 2018. Excluded: the Commission (report presented Nov 26 2020, released Dec 8 2020) was 'satisfied that the individual acted alone'; no one else was involved in planning, preparation or execution, there is no evidence anyone else knew of his plans or gave him personalised encouragement, and he used his own money and needed no outside funding (the money flowed to the groups, not from them). Pleaded guilty Mar 26 2020; sentenced Aug 27 2020 to life without parole, the first such sentence in NZ history. Court of Appeal rejected his out-of-time appeal on Apr 30 2026.