I don’t believe the police in the UCC shooting have released what was in the “package” that the shooter gave to the one student to give to the police, have they?
UCC Oregon Shooters Mystery Package
http://tacticalshit.com/ucc-oregon-shooters-mystery-package/
As much as we all say we would rush an attacker - without training humans will freeze up. I think the American heroes on the train were able to rush because they had military training. Their friend who was not trained followed his buddies into action.