What was John Madden's cause of death last year?
NFL legend John Madden dies at 85
NFL icon John Madden dies unexpectedly -- dead at 85
John Madden Dead - Legendary NFL Coach & Broadcaster Dies at 85: Photo 4683788, John Madden, RIP, Sports Photos
NFL Coaching and Broadcasting Legend John Madden Passes Away at 85 - OnFocus
NFL legend John Madden dies at 85
John Madden, NFL Legend and Namesake of Iconic EA Sports Game, Dies at 85
John Madden, Hall of Fame coach and broadcasting icon, dies at 85 – Orange County Register