How did you, as a WWE parent explain to your children about what occured with Chris Benoit?

My little boy was too young to understand it, so I never had to explain it. However, another question I have is, did you keep all of your Chris Benoit Memorabilia or through it away. I just came across some collector cards and trying to decide what I should do with them , I think selling them would be wrong, making a buck off of someone's tragic ending does not sit well with me. And also my son has an autograph from Chris Benoit, he is two now and he loves wrestling, i have the autograph put up, what should I do with it? Thanks for replies and please tell how did you explain it to your kids! Thanks