8 minutes ago Katy Watson ,Australia correspondentand Simon Atkinson A white supremacist who killed 51 people at two New Zealand mosques will appear in court this week to try to withdraw his guilty plea. Australian Brenton Tarrant is serving a life sentence with no parole after admitting to murdering the 51 people and attempting to murder another 40 in the March 2019 attack on worshippers during Friday prayers in Christchurch. He initially denied the charges, but changed his plea a year after the attack. The 35-year-old, who also admitted one count of terrorism, has now launched an appeal, filed out...