Hi Cathy,
I can fully understand your friend's family's need to try to get an idea of what happened and Claire's final moments. While it may not take any of the pain away, I can still see why they would feel the urge to know as much as possible from official sources as well as any official ones that one could identify.
I don't know if you have considered looking at her Just Giving page?
Some of the donations came from people who witnessed her being given treatment following her collapse.
Maybe a tiny bit of comfort or pride for the family also, that Claire's target of £500 for the Samaritans now stands at in excess of £21k worth of donations.
http://www.justgiving.com/Claire-Squires2
Look after your friend. x
[edited to include link]
Edited: 23/04/2012 at 14:29