Her arm was broken. Her neck and back were injured. There were 6 things that could kill her instantly, that usually kill the victim instantly. Many tons of concrete were positioned above her head, touching her head and ready to slide down - ripping and shredding her head, from her torso. It was his first disaster and his first collapsed building.
Experience counts in serious matters the difference between life and death.
When I saw what he was doing, my heart took a leap. I shouted at him to stop. She was saved, for now. If I had arrived 2 seconds later, she would have been killed. It took 2 hours to free her.