 He said that the corpse is definitely Tit Tau's and he has proof.Lai Sam said that 3 years ago, Tit Tau had taken a special medicine to peel his skin and create a new one, which explains why the skin around the scars on the corpse looks so new and young.Also, Lai Sam also said that the calluses on the corpse's feet were the result of Tit Tau's heavy uniform and when he did walk, the equipment and clothing were so heavy, it created pressure on his feet.