This was in the news a while back. youtube.c*om/watch?v=Dq2F-9reSL8

I accept I may be going to hell for this...but I'll get straight to the point: what exactly is happening to her as we hear this chilling audio at around 1:14 on? It's been bothering me for a hella long time and I hoped someone might be able to satisfy the morbid curiosity I have associated with this. I remember someone said she was being ripped in half, and the shaky scream at the end was her upper body tumbling deeper into the machine. I have no idea how an escalator works. Any sick fucks care to speculate?