범행 직후 놀란 B씨가 A 씨를 밀어내고 방문을 잠갔지만, A씨는 방의 잠금장치를 부수고 들어간 것으로 조사됐다.
Shortly after the crime, B, who was shocked, pushed A away and locked the door, but the investigation found out that A broke the door lock to enter the room.