그는 오랜 병간호 생활로 우울증 진단을 받았고, 범행 전 가족들에게 "딸을 죽이고 나도 죽어야겠다"고 말한 것으로 확인됐다.
She was diagnosed with depression after a long nursing life, and it was confirmed that she told her family before the crime, "I should kill my daughter and I should die too."