They met him while he was offering the Fajr prayer with his companions.
He is also the Vice President and successor of the company that hired Haebom and Taesung unbeknownst to Haebom as this company would, by rights, be passed down to Taesung.
The Hour is one of five things which nobody knows except Allah.
Ask not about things which, if made plain to you, may cause you trouble.