To explain why the British voted to withdraw from the EU, attention turned once again to the role of Russian trolls. Even Twitter began investigating the case. In the end, Twitter had to inform the British parliament that it found no evidence of Russian efforts to influence the outcome of the Brexit vote.
The Christchurch shooting was a false flag operation with the purpose of restricting gun laws in New Zealand.
The Christchurch shooter, a man named Brenton Tarrant, was a white supremacist who espoused racist and anti-immigrant views, which were detailed in a manifesto that he sent to numerous people just a few minutes before the shooting. His attack had ideological motives and there is no evidence to support the conspiracy theory that he is somehow linked to the New Zealand government or to any other government.
For more cases about the Christchurch shooting, see here.