Interesting twist. The shooter was turned away from a training academy.
http://news.yahoo.com/oregon-gunman-may-killed-more-not-hero-student-023653508.html
Not counting convicted felons I've turned around half a dozen people away for similar "gut-feeling" reasons.
Many other Instructors have told me of doing the same thing.
Profiling, if that is how this would be considered, is frowned upon by many idiots in our society, but I call it common sense and I commend you for it.