Two riders collided and took a spill on one of the long hills coming into Austin right in front of me. One of my teammates said that the guy's helmet was broken due to the impact.

I guess the biggest confusion was that the ride marshal was trying to get the guy to stand up and get off the road (which I could see as a priority due to the situation). But, the guy hadn't really come out of his daze yet. I've always been told not to move due to risk of further neck damage if something is wrong, but with so many other riders coming down the hill, there was a lot of confusion going on.