Researchers: NFL's Seau had brain disease

FILE - In this Jan. 10, 2010, file photo, New England Patriots linebacker Junior Seau (55) warms up on the field before an NFL wild-card playoff football game in Foxborough, Mass. Star linebacker Junior Seau had a degenerative brain disease when he committed suicide last May, the National Institutes of Health told The Associated Press on Thursday Jan. 10, 2013. (AP Photo/Charles Krupa, File) Photo by
FILE - In this Jan. 10, 2010, file photo, New England Patriots linebacker Junior Seau (55) warms up on the field before an NFL wild-card playoff football game in Foxborough, Mass. Star linebacker Junior Seau had a degenerative brain disease when he committed suicide last May, the National Institutes of Health told The Associated Press on Thursday Jan. 10, 2013. (AP Photo/Charles Krupa, File) Photo by
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