The question of why Dave Duerson did what he did has an answer. He knew or at the very least suspected he had some kind of brain trauma, in specific CTE. And he knew or at least suspected it was from football and others suffered from the same thing as he did. That's why In his suicide note he said to make sure to get his brain studied, the reason why he killed himself the way he did. And he was right. That's what he had. CTE is linked to depression, suicide, degenerative brain disease, etc. He had trouble putting sentences together and couldn't remember people's names and obviously he didn't want to live like that anymore with something that was probably just going to get worse as he aged.
If anyone can look past the dumb **** sports fans that wanted to burn it, read the recent biography of Walter Payton, you could see similar changes in his health that would point to the same kind of problems.
That is very true RK, but for players of yesteryear may not of known the ramifications and thought they just had their bell rung. Today players can weigh their choices and make a decision whether or not it worth the risk and I believe from most yesteryear would have taken the risk if they had known the ramifications and most today are still taking the risk. At least now they will have some idea of what's going on.
I hate that a lot of fans still judge the players poorly because of that though, like in the Crosby thread. Or that they get upset when maybe it's brought up a player should take a game off after a particular brutal hit or head hit. There's nothing wrong with that at all. There's nothing wrong with being careful, too much is still made of the image of playing through that stuff, That idea is glorified while the opposite of it is criticized. Maybe that attitude should change. That's what got you in the position you are today, asking all these questions and why it's all starting to come out now.