A former top UN representative labelled a “narcissistic psychopath" by her late partner's disinherited son has left him with a £216,000 bill after winning a court will fight. Property developer John Saville Thurston died aged 81 in January 2022 - six months after suffering a major stroke - and left his entire £500,000 estate to his partner of five years, Hannah Shabathai, who he had met just months after the death of his wife, Elizabeth. But Ms Shabathai, 77 - who worked for the World Health Organisation for nearly 40 years and was awarded the WHO gold medal to recognise her long and distinguished service - later found herself in a court battle with his son, Jonathan Saville Thurston, 64. Jonathan, who had stood to inherit along with his sister under a previous 2013 will made by his dad, claimed the 2019 will leaving everything to Ms Shabathai was invalid, alleging “undue influence” and claiming there was “substantial evidence of coercive control exercised by her over the deceased”.…