I'm surprised this doesn't happen more often.

An experienced 59-year-old runner collapsed and died during the Pikes Peak Marathon despite attempts by competitors to save him a little more than two miles from the summit.

High fives to people who even TRY to do that, I'm amazed at what humans are capable of. And I'm really impressed with the runners who stopped to administer CPR, in our jaded world it wouldn't be surprising if people stepped over him trying to keep their place in the race.