What was John Madden's cause of death last year?
John Madden dies; former Raiders coach was 85, Raiders News
Raiders news: Las Vegas unveils awesome plan to honor John Madden at season finale
NFL Legend John Madden Has Died at the Age of 85
John Madden dies; former Raiders coach was 85, Raiders News
John Madden Dead: NFL Legend Dies 'Unexpectedly' at Age 85
NFL announces legendary coach, commentator John Madden dies at age 85 - DraftKings Network
John Madden, football legend, dies at 85 - NBC Sports
Legendary NFL coach and broadcaster John Madden has died - Field Gulls
NFL Hall of Fame coach and iconic sports broadcaster John Madden dies at 85
NFL legend John Madden dead at 85
NFL Legend John Madden Dies at Age 85
John Madden, legendary NFL broadcaster and Super Bowl-winning coach, dies at 85
Ex-Raiders coach John Madden, NFL Hall of Famer and broadcasting legend, dies at 85