I've read several comments about people leaving the tunnels walking past people not knowing if they were alive or not. Even seeing some of them (possibly) moving and still walking right on past. This really bothered me. If you're alive and able to walk out do you just leave or do you see if you can help somebody out with you?
It also brought to the front the need to carry a whistle with me. If I'm injured I really don't want somebody to be able to say "I thought he was dead" the incessant whistling should give me away as someone who is still alive.
Very saddened by the incidents, hopes and prayers with those injured, and the families of those killed.