Li Jia Heng.   That was what you heard his mother calling him when you were half awake,  still lying in bed and trying to grasp what was going on.    Kris.    That was what he introduced himself as, when you were watching his debut showcase on the SMTOWN YouTube channel.    Wu Yi Fan.    That was what he had identified himself as, when he tried to stop you along the corridor of your workplace.    They say the