Peter Grant ’83 played interhall football for Notre Dame’s Grace Hall. Dave Duerson, a classmate and casual acquaintance of Grant’s from the dorm, was an All-American defensive back and an 11-year NFL veteran who won two Super Bowl rings. Their athletic careers could not have been more different. But Grant and Duerson were alike in competitive passion. They played hard. And in the end, the game did not distinguish between them. It turned their intensity into an insidious, mysterious disease. Years removed from their last athletic collisions, they suffered a toll far worse than aching knees or arthritic hips, a loss impossible to repair or replace. They lost themselves and, within days of each other last February, their lives.