Jonghyun's sister is Kim So-dam.
Kim So-dam is Jonghyun's older sister. She was the individual who first contacted emergency responders with concerns about his well-being. At 4:42 PM on the day in question, she made an initial call to emergency services, reporting her belief that he intended to harm himself.
Her apprehension was prompted by several messages he had sent her through KakaoTalk, which contained phrases indicative of distress, such as:
- "last goodbye"
- "say I did well"
These messages led her to conclude that he might be planning to take his own life, prompting her urgent call for assistance.
