Excellent resource! Thanks for sharing. Also a old section regarding immediately follows relating to the discussion upthread about this subject (which I have looked for but lost and will link when I find it. It was either upthread in #19 or towards the end of #18 between one of our verified physicians and another poster who is a verified anthropologist (I think these were the two posters, may be misremembering)… whew that was a mouthful. I have disordered thinking since my strokes, I “think”!)
”Psychosis is a severe mental disorder in which both thought and emotion distort reality. It is sometimes the driving factor behind targeted violence, but personality disturbances seem to play more of a role.71 Nevertheless, caution is advised if one assumes that psychotic individuals will not be able to organize themselves enough to engage in complex and organized behavior. One early study found certain or probable psychosis in two thirds of adult mass murderers, contradicting such an assumption.72 Recentresearchsuggeststhatatleast20%ofadultmassmurdererswereseverelymentallyill.73 Inthe experience of the BAU, and in the observations of researchers, deeply entrenched delusional beliefs can have the effect of focusing and driving pre-attack behaviors and propelling a would-be offender along a pathway toward violently offending.
Although likely representing a minority of cases, psychotic symptoms or disorders can be a primary influencer of target selection. For example, Mr. C drove across the country and engaged in significant violence at the U.S. Capitol. He killed two sworn U.S. Capitol Police (USCP) personnel, acting on his delusional belief that the United States was about to be annihilated by disease and legions of cannibals. After surviving the incident, he later disclosed that he went to the Capitol to gain access to “the ruby satellite,” a device he said was kept in a Senate safe. As a person with paranoid schizophrenia, he was able to plan and carry out cross-country travel, and to engage in successful attack behavior. Mr. C believed the satellite was the key to putting a stop to the cannibalism. It had a means of reversing time, leading him to believe the deaths he caused were “not permanent.” Although he previously communicated his beliefs to others, including multiple governmental agencies, he was unable to secure assistance with his mission to protect himself and the public from harm. In his mind, this forced him to take action on his own” (page 42)