I always get confused about the connection to gun control and how these things can be averted. I guess if we outlaw something people who want that thing will no longer seek it, sort of like booze, pot, drugs, foie gras and so forth. Somebody motivated to kill dozens I am positive would be deterred by such rules (and let's be honest, Oregon so few restrictive gun laws compared to other states).
Indeed, those wanting notice you would think would prefer showing up in places where the odds of opposition are lower.
I would have the think the best prevention would have to look at what motivates such individuals and why do they act? Is it a growing disconnection from others and society? Can it be countered?
The other issue I wonder about is why so few outlets are reporting on the Christian targeting angle, especially the NYT and other left leaning orgs (I will give NBC credit for noting the reports of him asking about religion, though they avoided noting the religion in what I've read from them). I wonder if they would have done the same if he was reported to have asked potential victims if they were Muslim.