Noriaki Iwasa, a 40-year-old university student in Tokushima City, was accused of threatening to throw an envelope containing threatening messages. The prosecutor's office pointed out that "it is a hate crime that caused discriminatory feelings and anger against the Korean government and Koreans" The defense asked for a suspended sentence, saying that "the defendant is deeply remorseful" The verdict will be handed down on the 10st of this month.

The prosecution revealed that the defendant had previously fired gunpowder guns without live ammunition at the Mindan's office.