Incredibly sad.
I remember riding a friends three wheel (atv type) and flipped it over first time out, had to push the thing off me. Wasn't even going fast, started drifting off the path, and trying to brake to avoid a bush, and it flipped over right before stopping.
In other words, those things are dangerous. Only got a couple of scrapes, but decided atv's weren't exactly my cup of tea. Not afraid of them, but won't exactly run towards the next atv I see in anticipation of riding one. You have to respect the atv or you will pay.
Very sad for Rodney Rogers. Hopefully some of it comes back with time. Not too abreast of the research but I thought I heard we might be about 5-10 years away from being able to re-connect the spinal column or fix the break by regrowing the nerves or something like that.