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accident. police finding key evidence in the instructor's stomach? and also caught on tape. a scary armed robbery at a dunkin' donuts, a customer trying to be a hero but ends up unconscious. how this all went down, all in matter of seconds. up first this morning, big new developments with the chinese activist smack-dab in the middle of a political firestorm. hillary clinton is scheduled to speak about chen guangcheng in about an hour. we learned that chen can apply to study abroad according to a chinese state-run news agency. u.s. officials also say they just spoke by phone today...

Break. these are tough circumstances to discuss. this is part of the world that you're in now. but i can't get over this one fact that, chris, david shot himself in the chest in part it sounds like from messages he left, because he wanted his brain to be preserved so it could be analysted and he could help further research. he was thinking about you and the work that you're doing. and i wonder, how did that make you feel? >> to be honest, it's really -- very unsettling. it's not -- a situation we've always been concerned that might happen. because we know how destructive cte can be, and althou...

Is actually headed for the boston university school of medicine. where evidence of brown tangles, damage in the brain called chronic traumatic ensef lop they've, or cte, have thus far been found in 30 ex-athletes. many of whom like duerson, played professional football. in the next several months, duerson's brain activity will be studied. perhaps this will provide answers for fellow athletes still living. >> we hope it really makes a difference and once they find out what the cause is, that the nfl takes a stand and says, okay, we are going to try to alleviate this problem, because if you don'...

Which could be another bloody battle. lieutenant, what you know a lot about. lieutenant general, thanks for what you've done for the country and thanks your sharing your point of view today. >> thanks, brian. >> all right. gretch, steve? >> all right, brian, thank you very much. an nfl player takes his own life but david dewerson leaves behind a tragic message. donate my brain to science. his ex-wife joins us live in a few seconds. >> intern nearly arrested for honoring one of our nation's presidents it's true. outrageous story straight from the steps of the lincoln memorial on president's day...

Negative equity. what do you think suggest? don wishes old have met you sooner. >> well, don, i've done a lot of stupid things in my life. when they cost me money, i call it stupid tax. you've learned that the worst car accidents happen on the showroom floor and go down in value like a rock. that's where chevy got that. >> if we have a high speed train system, this kid wouldn't need a car. >> sure. >> that's the whole problem. >> meanwhile, susan wrote us from oklahoma and says we joined a debt settlement company to help us with our debt, we're over $40,000 in it and haven't gotten anything se...