joining us former nfl player john booty.ike in that introduction that we said something that triggered it, because we really don't know yet. an autopsy has been done yet on seau. >> i read this morning where it said the autopsy showed, said it was a suicide. but again, we don't know. but dave dorson did, he donated his brain so we could have research on his brain. concussions are big time problem in the national football league. we're learning around other sports as well, that concussions can happen. you don't have to have the major concussions, you can have the little headaches, little hits that can accumulate and cause long-term pain. >> in fact, i'm sure you're not surprised to see several former nfl players coming together saying the nfl should have said more about this. >> i'm not surprised at all. because i'm a former nfl player and i have to look out for my livelihood, for my health long- term. i have family, i have two daughters i have to take care of. we have to humble ourselves as players, as these warriors on the