saw the vid. I believe as a society we should do proper training to react better in those situations, just like we're trained into how to react on fires, quakes, etc. It made me sick to see people just piling up in a corner pretending to be dead when there's no rooms to watch. They were just waiting to be slaughtered. When you see one guy tackle him down causing him losing the weapon, it makes you realize that if that same reaction was more common, if they actually stacked as a group to retaliate once he entered the room, there would've only been a handful of victims.
May they rest in peace. And to the gunman, all seven hells.
Also the edgelord meme stuff (subscribe to pewdiepie, initialD music when fleeing)... jesus christ.