Johnson, who died by suicide in 2019, played for four teams over 14 seasons, totaling 785 regular-season games. His daughter, Carson, emphasized the need for awareness and action from the NHL regarding CTE.
Despite growing evidence, the NHL has long denied a link between hockey-related head injuries and CTE. Studies have found CTE in 17 out of 18 players examined in North America, including NHL stars like Ralph Backstrom, Henri Richard, Stan Mikita, and Bob Probert. Johnson's wife recalled his relief at retiring due to a heart condition, as he could no longer endure the impacts of the game.
Johnson's career included stints with the Detroit Red Wings, Pittsburgh Penguins, Chicago Blackhawks, and Nashville Predators. He also earned a silver medal with Team Canada at the 1994 Winter Olympics and a gold medal at the 1991 World Juniors.