Australian white supremacist who murdered 51 Muslims said poor mental health made him admit to crimes The Australian white supremacist who murdered 51 Muslim worshippers at two mosques in Christchurch in 2019 has been prevented from appealing against his guilty pleas, after one of New Zealand’s highest courts said his bid was “utterly devoid of merit”. Brenton Tarrant, who is responsible for the worst mass shooting in New Zealand’s history, asked the court of appeal in February to allow him t...