Detective Sungmin rushes to reach the office of the head of security when Supervisor Mok won't answer his radio. He is certain that the man who killed Lee Yejoon will be captured by CCTV in front of the Nurse's Locker Room holding the steel bat. A place they didn't try to investigate before because there were no suspicious reports of anyone going in and out of the lockers.
'Someone from the hospital killed Lee Yejoon.' Sungmin tells himself.
At the security personnel's office, Detective Sungmin immediately shows his identification to the staff behind the screen.
"I'm Detective Lee, the head investigator in Lee Yejoon's case. I need to see the recording in front of the Nurse Locker's room from last week." The investigator orders with a sharp voice.
"Does Supervisor Mok know about this, sir???" The young personnel asks, distrusting the man who surprisingly barges into the office.
