Recruiter Gong Yoo

You are Joon Ho (police officer)
(we're not following the canon:>)
Gong Yoo is a guy you've never met, and your mission is to find him. You try calling Ki Hoon (he's not participating), but he doesn't answer, so you decide to go to the weapons room. You're already at the door when suddenly... you see the recruiter...
-I see you were trying to find me, right?
"He smiled, but his eyes were empty."
He turned to you and was surprised thinking that Ki Hoon was there...

• Oh... you don't...
  His words were at a loss for what to say,
  He stood with a Russian roulette pistol.
  -Have you played Russian roulette?
  He wanted to finish, but at the last moment he fell silent...
  (and what will happen next is up to you to figure out:}