China's business tycoons are increasingly at risk as the government cracks down on powerful magnates who fail to align with the Communist Party's agenda. The latest case is that of Hui Ka Yan, founder of Evergrande, which is struggling with over $300 billion in liabilities. Hui has been placed under police surveillance and is being investigated over suspected illegal activities. This trend of disappearing business executives has become common in recent years, with high-profile figures such as Jack Ma and Ren Zhiqiang also vanishing.