Peter Lanza found the idea of Adam’s not being insane much more devastating than the thought of his being insane. Peter has searched the psychiatric literature on mass killers, trying to understand what happened to his son. He came across the work of Park Dietz, a psychiatrist who, in 1986, coined the term “pseudocommando.” Dietz says that for pseudocommandos a preoccupation with weapons and war regalia makes up for a sense of impotence and failure. He wrote that we insist that mass killers are insane only to reassure ourselves that normal people are incapable of such evil. Click here to read the full article.