A mainland Chinese man has been deemed unfit to stand trial for his alleged involvement in a deadly shooting during a botched robbery in Hong Kong three decades ago, after he was diagnosed with a cognitive impairment caused by lung cancer. A High Court jury of four men and three women ruled on Friday that Shenzhen resident Wen Wenye, 61, could not be held criminally liable for murder and attempted robbery because he was unable to understand the legal proceedings and give instructions to his...