I was diving with Sean on HD's Cheeca View yesterday morning. It is rather sobering to pull up to the dock to see a diver on a stretcher, ambulance flashing lights, etc. I am sure the diver's actual dive profile on his dive computer will be examined.
I was told before I left by one of the staff that he was improving on O2 on the way back to the dock from the dive site.
The moral of the story is that even if you follow your dive computer, when you do multiple deep dives back to back your risk factor increases. Even if we are within the limits of our dive computers, those algorithms are written for the general population and are not specific to our own individual physiology. Diving close to the limits is always a risk.
The second moral of the story, keep your DAN insurance up-to-date. You never know what could happen or when. Be prepared.
Hope he is making a speedy recovery.