Possibly in the chaos the trailing edge of the rudder met with the trailing edge of the HS or some other detached part.
Don' put words in my typing : My post was just about too-quick interpretations and conclusions and the remarks I made were another possibility, like yours is, so between the posters who see a sideways breakage, and you proposing a far more complicated scenario, where do we stand ?
Nowhere, I think.
Someone needs to summerize the factual infos avaikable, otherwise Danny will get back in with his big heavy boots.