Mental anguish is what led to this shooting, not a mental illness. He was able enough to apply for a gun because he was not mentally ill. He shot people because he lived out of a car and was destitute. America should be prepared because while shootings like this happen too much, in the future it is going to be a daily occurrence. Economics in this country has driven many good people to the edge and in pain with nothing to loose. Not my problem. Not your problem, but eventually they will get even and in this case, he was successful.