WELLINGTON: The Australian accused of carrying out last year’s mass shooting at two New Zealand mosques that claimed 51 lives pleaded guilty to all charges Thursday in a surprise change of mind, police said. “The guilty pleas to 51 charges of murder, 40 charges of attempted murder and one charge of engaging in a terrorist act were taken via an audio-visual link from Auckland Prison,” commissioner Mike Bush said in a statement. The shootings last March by self-avowed white supremacist Brenton Tarrant targeted Muslims at Friday prayers and were the worst mass shootings in modern New Zealand history.