Can't wait to see the videos from the remote cameras. Should be interesting viewing. I doubt that the details will ever really be known as unless the know the sequence of the damage it is hard to tell whether it was caused by gunfire or secondary explosions.
EDIT: An article speculating on the fate of the survivors due to the lack of lifeboats published today in the SMH:
http://www.smh.com.au/news/national/...e#contentSwap1