Liam Payne’s girlfriend, Kate Cassidy, has said she has “lost the best part of myself” after the singer’s death at the age of 31. A postmortem examination report said former One Direction member Payne died of multiple traumas and “internal and external haemorrhage” after falling from a third-floor balcony of the Casa Sur hotel in the Argentine capital, Buenos Aires. Police officers and the emergency services found the music star dead at the scene last week and his body was transferred to the judicial morgue. In a post to Instagram on Wednesday, a week after the singer’s death, Cassidy said: