EDMONTON, Alberta (AP) — Thatcher Demko stopped 48 shots, Quinn Hughes set an NHL record with a goal and an assist, and the Vancouver Canucks staved off elimination for the second straight game with a 4-0 win over the Vegas Golden Knights.  J.T. Miller had a goal and an assist, Jake Virtanen also scored and Bo Horvat added an empty-net goal with 4 1/2 minutes left. Hughes has 16 points this postseason, one more than the record Colorado’s Cale Makar set Wednesday night. Demko did the rest in his second playoff start, forcing a Game 7 on Friday.