A couple in their late eighties have been found dead in a To Kwa Wan flat, prompting Hong Kong police to launch an investigation. A security guard at Lok Seen Lau, a residential block in Lok Man Sun Chuen estate on Kau Pui Lung Road, reported a strange smell coming from the flat at around 4.15pm. Firefighters forced entry into the flat and discovered the couple, an 89-year-old man and his 87-year-old wife, lying unresponsive on a bed. Both were certified dead at the scene. Officers are...