True. When he was little he "helped" his father as if it was nothing but fun (did to a bug also) and his mom found out about it causing her mental wrong and think Jin is a monster. So how he got that glass eye was by the mom not the dad who did it.
But in the end Jin's father killed himself and Jin is free (well, he's in jail but I'm sure he'll be free)
How do u know?
Is it complete?
Can u give me the link!?
Naver has it but I think when webtoon's complete then they take most chapters away which is sad http://comic.naver.com/webtoon/list.nhn?titleId=628997&no=2&weekday=sat
He's fucking his own son's mentality up. The best way to present someone as a murderer is to make the person believe so himself. Jin was a victim since he was born and now that he shows resistance, his father makes him the perpetrator. It's fucking disgusting