Grant Feasel was a starting center and long snapper for the Seattle Seahawks from 1987 to 1992. However, due to a brain muddled by a history of repetitive trauma and symptomatic concussions, he turned to drugs and alcohol. The combination of CTE and his drinking led to his death 9 years ago. His wife, Cyndy, is on a mission to educate people about this deadly combination – brain injury and addiction.