Sadly the mass loss of young life in the night club in Crans Montana is not the first such tragedy, with PBS collecting some past examples: https://www.pbs.org/newshour/world/a-look-at-some-of-the-worst-fires-in-bars-nightclubs-and-music-venues There was also this one in Rouen, France: https://fr.wikipedia.org/wiki/Incendie_du_Cuba_Libre. The similarities are striking