Text: William John Masterton (August 13, 1938 -- January 15, 1968) was a Canadian--American professional ice hockey centre who played in the National Hockey League (NHL) for the Minnesota North Stars in 1967--68. He is the only player in NHL history to die as a direct result of injuries suffered during a game, the result of massive head injuries suffered following a hit during a January 13, 1968, contest against the Oakland Seals.

Question: has there ever been a death in the nhl?
yes