I'm sorry for your loss. I can't imagine what it would be like to lose a close friend in such close proximity. I'm glad that you will get back on the water. That takes balls.
For more info, check boatertalk.com and americanwhitewater.com (go to safety section for the official accident report, though it might take some time to be complete).
"Government is like a baby: An alimentary canal with a big appetite at
one end and no sense of responsibility at the other."
- Ronald Reagan