I remember thinking he should have retired from combat at the end of his MMA career (I thought he actually did at first)and then not being impressed that he started boxing, seemed kind of like he was on a rocket ride to his doom. I was sad when he died but not actually that shocked or surprised. It was an obvious tragedy that he continued to compete as it was happening.
Him and other cases like his need to be kept in people's minds so that younger generations can learn from their examples and not make the same mistakes. I don't think combat sports will ever be completely 'safe', but they aren't meant to be. There are ways, however, that prices people pay for their participation can be minimalized so that it is a trade that makes more sense. There is always the possibility that you can be killed or maimed in any number of ways participating in combat sports but there are also ways to be prudent and intelligent about competing.
You only get one brain and one life.
Another good post