A sick white supremacist who coldly killed 51 people in a mass shooting is seeking to withdraw his guilty plea. A panel of three judges at the Court of Appeal in Wellington will hear five days of evidence about Brenton Tarrant’s claim that he was not fit to plead to the terrorism, murder and attempted murder charges he faced after the 2019 attack on two mosques in the city of Christchurch, New Zealand. It was New Zealand's deadliest ever shooting. Tarrant said he felt forced to admit to the