Dear Erin, my name is Joe and I was one of the volunteers from the bike ride that stopped to help Mark. As Kelly mentioned we did all we could to comfort Mark until he was air lifted to the hospital. In reading what you and Marks friends have said about him, and the fact that even in his death, he is able to help so many others, it is a testimony of what a great man Mark was. In keeping with Marks spirit, I have decided to sign up to be a donor. There is a very old legend that says when a loved one dies a new star is created in the heavens. I am sure that Marks star is one of the brightest. I am so sorry for your loss.