Yes I watched the video.
She was at the door. The window had been broken previously. She was looking through it, and was starting to climb up when she was shot and was blown backward onto the floor. A picture from inside the chamber has been published. It shows men in suits, weapons drawn. You can see that the window she was shot through has no glass in it. The men were standing in front of a large desk of some kind, placed in front of the door to barricade it. If you noticed in the video, no one is banging on the door. Basically no one around her is even paying attention to her, or what she is doing. Most of their backs are turned from her. When the shot rings out, people are looking all around, trying to figure out where it came from.