Ashli's head DID hit the column, and in this video it's easy to see she's clearly in her death throes starting at 2:22 in this video, this is a very good example of what someone looks like when they're checking out, she didn't last more than a minute after being shot (I'm guessing she was shot in the upper thoracic cavity and not in the neck, dead center so neither the jugulars nor carotids were hit) -
https://www.bitchute.com/video/LkKPy9HsipJy/