Very sad news for him and his loved ones. But thats boxing and im 110% sure he knew what could happen to him.
RIP Choi Yo Sam http://www.iht.com/articles/2008/01/03/sports/boxing3.php My condolences to his family.
interesting that this should come about so soon after the big discussion about how FC is the only way to fight, and the benefits far outweigh the cons.
Its a fact that getting nailed in the head causes damage. As long as you know the danger a\nd you weigh up what it is you want to do in life/martial arts i dont really see the problem. No one is forced to do this kind of training, its up to the individual. At the end of the day you could avoid FC for fear of injury, then die in a car crash on the way home from a points competition. If you want to do something, do it.