I agree with Rev....while this poor fellow paid with his life, he left family behind who will also pay the price, and the news always says, "Snowmobile related death"...so the industry takes a hit...reinforcing the notion that it is a dangerous sport and needs to be policed more heavily....and of course there will be those who use this accidental death to further the cause against snowmobiling altogether.
Rev is right tho...proactive approach is the ONLY way....and even on this board there are folks who think nothing of tossing a few down and riding on...when as every experienced sledhead knows... you need 100% of your abilities 100% of the time and all it takes is a slower reaction to a single incident to hurt someone who might have otherwise got stopped, got braked, got heard, got smart BEFORE it all happened.
There is a reason why ZERO tolerance is the norm for most clubs and while we all have to enforce the rules for each ride, it is up to us to keep these numbers down or simply put...pay the price for the entire sport.