You MUST watch this video:
http://www.youtube.com/watch?v=f4B-r8KJhlE
Dick and Rick Hoyt. Father and Son. The son, paralyzed since birth and unable to talk without the help of a special computer. His dream was to run in marathon. His father competes with his son in tow.
The go here and read more about them:
http://www.teamhoyt.com/history.shtml
I can not believe I have not seen their story until now.
I hope I can be 1/2 the dad this guy is. -Bryan