Netizens Are Not Buying Kim Soo Hyun’s Claim Of Innocence Based On Forensic Analysis Of His Messages

On March 31, KST, actor Kim Soo Hyun held an emergency press conference to address the accusations that he dated the late actress Kim Sae Ron when she was a minor.

During the presser, the actor completely denied the allegation.
I could not make myself admit that something was true when it was not just because I was threatened. I’m now going to talk about what you all want to know most.
I did not date the deceased [Kim Sae Ron] when she was a minor.
— Kim Soo Hyun
He also claimed that the previously revealed KakaoTalk messages, which implicated his involvement with Kim Sae Ron when she was a minor, were doctored. As evidence, he presented a forensic report analyzing his text messages and comparing them to the revealed KakaoTalk messages.
However, the person talking to the deceased in the 2016 messages is not the same person from the 2018 messages. To prove this, I submitted all the relevant messages — the 2016 and 2018 chats provided by the family, as well as my own recent chats with acquaintances— to a scientific forensic institution for analysis.
The result: The institution concluded that the person in the 2016 messages is not the same as the person in the 2018 messages. This has been the most painful part of this controversy.
— Kim Soo Hyun
However, netizens are not convinced of the validity of this analysis. As many pointed out, an individual could have a vast range of texting styles based on who they might be talking to. So, netizens are not buying that a forensic analysis based on tone comparison can be accurate.

- “A KakaoTalk tester, LOL.”
- “From now on, everyone should speak the same way they did two years ago.”

- “Wow! How scientific!”
- “So is he saying he didn’t send the messages or what?”
- “LOL, Please. Who hired that agency seriously? Did they not consult with anyone around them or what…”
- “Oh my God, seriously. I don’t think even an elementary school kid would make such an excuse.”
People way of talking especially change depending on who they talk to. He would not be talking to his peers the same way he talked to the 15 year old he groomed. https://t.co/I5sNQloAUI
— Hornbill (@tiansjiu) March 31, 2025
A forensic statement analyst who pointed out that KimSoohyun’s KakaoTalk messages didn’t match his usual speech pattern also predicted during the Nth Room case that the perpetrator, "Doctor," was likely a man in his mid-40s with extensive knowledge, exceptional writing skills,… https://t.co/D4AM1qDdt3
— 🇰🇷Feminist Sanctuary🇰🇷 (@sanctuary_for_f) March 31, 2025
Meanwhile, more intimate pictures of Kim Soo Hyun with Kim Sae Ron have been released after his press conference. Read more about it here: