Everything happened right in front of her and Natalie couldn't even tell how she was able to stomach the scene without throwing up, but she somehow did.
Daniel had not been kidding when he said he won't give him an easy death. He shot the man so many times that she couldn't keep count anymore and he should be dead already. However, he intentionally missed out on the vital parts meaning that the man was left to bleed out on the floor while suffering the pain of the torture Daniel put him through.
When he was satisfied with his handwork, Daniel finally put him out of the misery by landing a clean shot between his eyes. Once he died, the environment fell still and Natalie couldn't even breathe carelessly as she finally stood to her feet, her legs almost giving out in the process.