YEE brings the forensic staff to the laboratory for investigation, where they discover a light trough which seems to match the wounds on SAI-HANG’s back. KIT reveals that he did meet SAI-HANG before his death. According to KIT, SAI-HANG had even tried to stop him from committing suicide. Staff of the Regional Crime Unit and the Forensic Science Division have a joint meeting, during which SUM carefully studies the photos taken earlier and makes a discovery soon afterwards. YEE forces FUNG to continue to pretend to be her boyfriend in front of HUNG, leaving FUNG a bit embarrassed and unsure how to react. TUNG has found some new clues from the data retrieved from SAI-HANG’s computer. YEE and FUNG go to question CHRISTY, after which they analyze the case all over again in greater detail and finally work out who is the primary suspect.… ...