Researchers at Boston University are studying the brain of deceased NHL enforcer Derek Boogaard to determine whether he suffered from a degenerative brain condition associated with repeated hits to the head. Dr. Robert Cantu, a neurosurgeon and co-director of the Center for the Study of Traumatic Encephalopathy at Boston University's School of Medicine, confirms Boogaard's family donated his brain. Cantu leads a research team studying the long-term effects of head trauma in sports.