We've had a couple bus hijackings fairly recently. Done by deranged individuals with a knife, one guy per incident, and in one case a passenger was murdered. I don't believe it was anyone trying to stop it that was killed. Everyone did nothing to try and end it apparently. I don't believe I would have just sat there, rather wait for an opportunity to stop the incident. With a bus full of people and the culprit walking around, there has to be chances, or just confront the person and go for it. The incidents stopped when the cops raided the bus. Cowards, I figure.