In "Signal" Lee Je Hoon's brother had not committed suicide.
On the 14th episode of tvN Friday/Saturday drama "Signal" (script Kim Eun Hee, director Kim Won Suk) broadcast on Mar. 5th, Park Hye Young (played by Lee Je Hoon)'s brother Park Sun Woo said that he had told Lee Jae Han (played by Jo Jin Woong) that he had found evidence of the In Joo high school incident.
On this day, Hye Young learned that there was an anti-depressant that was in his brother's blood. He heard the doctor say that with that amount, a person could have lost his consciousness.
Hye Young said to Soo Hyun, "My brother did not commit suicide."
Meanwhile, "Signal" is about two detectives - one from the past and one from the present who communicate through walkie talkies to resolve long-time unresolved cases.
