The alleged ringleader in the fatal assault of an entrepreneur during a bar fight last month has told a Hong Kong court that he was deprived of basic necessities while being held in a “filthy” police cell. Tsang Wai-ching, 40, was escorted to Kowloon City Court on Tuesday to face a murder charge over the attack on 32-year-old Issac Yeung Kam-chuen at an upstairs bar on Cameron Road in Tsim Sha Tsui on July 25. Engineering manager Cheng Yuk-lun, 52, was also brought to court for allegedly...