I believe a bullet could have cut through the skylight, continued through the celo, bounced against the wall, ricocheted to the floor, and penetrated the victim's chest cavity.
탄환 하나가 채광창을 뚫고 들어와 신문을 뚫고, 벽에서 튕겨져 바닥에 맞고 튕긴 후