Socially isolated; not part of the "group" . Loner; resentful of his isolation yet unable to reach out and connect with others. Inflated sense of importance combined with low self-esteem. He is a loser because others have betrayed him, lied about him and/or conspired against him. Depressed and suicidal or prepared to inflict pain on himself. Vengeful. Mass murderers such as Adolf Hitler and Cho Seung-Hui have this dark side to them. They are calculating with some unique abilities. Anger and resentment turn to hate; hate turns to revenge and action. A final act of "betrayal" sets them off on a one way course to mass murder. They blame their victims for the hell unleased upon them. These demons among us would be better off reading William Tatsiou's top  ten means to Happiness .

First Love God and connect with God. All other means to happiness come from this first principle; the other nine fill out the void and emptiness and produce hapiness which is the cure for their demented inner demons. Seek out your salvation as it is within your means to achieve and do not give up on yourself or other people.

In Hui's case, there was too much resentment and hatred. A suicide note reveals his tormented inner thoughts and feelings. A law enforcement official described it Tuesday as a typed, eight-page rant against rich kids and religion. The official spoke on condition of anonymity because he was not authorized to speak to the media.

"You caused me to do this," the official quoted the note as saying.

Cho indicated in his letter that the end was near and that there was a deed to be done, the official said. He also expressed disappointment in his own religion, and made several references to Christianity, the official said.