"Shark" Kim Nam Gil commits his second murder?

June 25, the 10th episode of the KBS drama "Shark" featured Detective Oh being murdered after discovering a photograph showing Jo Sang Gook (Lee Jung Gil) with a member of the independence movement back in Japan's colonial period in Korea.

Just as Jung Man Cheul (Kim Min Sang) had been murdered, Detective Oh's body is found the same way. There is a red circle drawn on his body. The person who murdered Detective Oh was a unidentified old man who was limping.

It appears as though the murder was organized by Kim Joon (Han Yi Soo/Kim Nam Gil). Kim Joon sees Detective Oh looking at the photograph in the library. Kim Joon speaks to a friend on his cell phone and continues to ask for updates on the detective.

In the midst of everything, the party for the 44th anniversary of the Gaya Hotel opens. Jo Hae Woo (Son Ye Jin) receives a video message that Kim Joon sent her. In the video, Jo Yi Sun (Kim Kyu Chul) can be seen making a meal with Jung Man Chul (Kim Min Sang) before he died. It turns out that Jo Yi Sun had committed an immoral act.