This was a severe accident and in extreme conditions. It involved several fundamental mistakes not only on the part of the victim but as it has been related far more on the part of the other kiteboarder.
Toby has created a new global kiteboarding resource for us, wiki/
You can find this account in this new wiki resource at:
Learn from Mistakes
Leash Without Function 1
Checkout this startling account there but also look around and see what you can contribute of value from your experience in the many sections in this new site.