Brenton Tarrant, 35, was sentenced to life in prison without a chance of parole after pleading guilty to terrorism, murder and attempted murder for his massacre of worshippers including children at two Christchurch mosques during Friday prayers in 2019. The Australian man is now seeking to recant the admissions he made in 2020, saying solitary confinement and other prison conditions made him irrational and mentally unwell. New Zealand’s Court of Appeal in Wellington is considering Tarrant’s bid in a five-day hearing. If the three-judge panel discards his guilty pleas, the case would return to court for trial. Tarrant first pleaded...