Foxcatcher
(2014)

Due the deteriorating relationship and possible declining mental health, John E. DuPont (Steve Carell) shoots and kills Dave Schultz (Mark Ruffalo) 

Dave Schultz is posthumously recognized by the wrestling Hall of Fame

Mark Schultz (Channing Tatum) retires after the 1988 Seoul Olympics. He currently operates a wrestling school 

Thanks Michael R!