According to the Seoul Central Police, Iron beat his girlfriend because she wasn't listening to him, causing fractures. Prosecutors said last September, while Iron and girlfriend 'A' were having sex, 'A' refused Iron's demands. He beat her face with his fists in anger.
About fifteen days afterward, 'A' decided to break up with Iron. He then choked and beat her, causing injuries and fracturing her left pinky. He then threatened her by stabbing himself with a kitchen tool and then telling her that if she called the police, he would tell them she stabbed him.
This has also brought up his past controversial song "Roll", coincidentally released last September, which also had lyrics talking about rape.
His case has now been turned over to the court on the 14th.