Well? I assume that it was Paxton that walked into her room. But And she says, get away from me *beep* But then what? I didnt really saw what had happened to her in the pictures of her later on, when shes not responding immideitly.
There was a brief shot later on, showing her destroyed body. I couldn't really tell if it was an open belly, like with the humans, or something with her head, because that part was too messy and short.
-------------------------------------------------------- ~No matter where you go, there you are~
Satan ripped her head off. All we see is the shoulders and the stump.
I guess the body wasn't that important since she was still responding later ... probably her AI exists in the computer and the body is just there for the human interface.