Choi Wai-yik, aged 39, went missing after he left his residence in Chuk Yuen in the morning on January 3. He is about 1.7 metres tall, 73 kilograms in weight and of medium build. He has a square face with yellow complexion and short straight black hair. He was last seen wearing a yellow T-shirt, blue jeans and carrying a black rucksack.   Close