Chao Xu had offered guests at his networking events and parties a drink called ‘The Spirit of Life’ - but unbeknownst to his victims, he had spiked them with ‘date-rape’ drugs For free real time breaking news alerts sent straight to your inbox sign up to our breaking news emails Sign up to our free breaking news emails Sign up to our free breaking news emails Email * SIGN UP I would like to be emailed about offers, events and updates from The Independent. Read our Privacy notice When answering