if they were explainable they were not unexpected.That word "unexpected" has been used a great deal since she was first arrested. I'm really not sure what weight to attribute to it, though.
Isn't any death or collapse in any person who is not terminally ill or has serious underlying health conditions "unexpected"? They happen every day, though.
After all, there were many more which were referred to the independent experts which were attributed as being explainable with no nefarious cause so they do happen, even at this hospital and in this unit!
I would take "unexpected" at its usual meaning.
There were no signs it would happen before it happened, according to their testimonies. IMO