I can't recall of any other event where a runner was in the actual race and in the lead pack and just fell over and died. The only other thing I can think of that rivals this is the girl during the women's NCAA 10k in the 1980s who ran off the track and jumped off a bridge, but she actually lived but was paralyzed he died. Being that it was the Olympic trials, and he had a chance to make the team, this has to be the worst.