I am not any where neat as educated as this doctor, but life experiences have taught me much about the human condition/behavior. The first thing that came to mind based on his age, his apparent higher than average IQ was schizophrenia. Only time will bring any "real" answers to what brought him to this decision to get the firearms, dress up and then do what he did. My heart felt prayers for the victims, their loved ones and the law enforcement personnel that are living this out first hand.