Boston University's Center for the Study of Traumatic Encephalopathy has asked to study Junior Seau's brain, according to Sports Illustrated. Seau was never listed on an NFL injury report with a concussion, but those close to him say he admitted to having experienced multiple head injuries. Seau died of a gunshot wound to the chest Wednesday and his death is being investigated as a suicide. The center studied the brain of former NFL player Dave Duerson, who died from a self-inflicted gunshot wound to the chest last year and asked that his brain be studied.