She Knows Everything S01 E03 Yang Su Jin’s Case Turns into a Murder Case

With the autopsy showing death from suffocation, Yang Su Jin's case turns into a murder case. Two suspects are on the list, Seo Tae Hwa and Im Jung Kwon. However, the police don't have any hard evidence to arrest anyone. Meanwhile, Goong Bok gets Tae Hwa out from police custody for attacking Lee Myung Won.