While reflecting on various TV reports about Rodger's life, I realized that he fits the description of what Rudolf Steiner called a "world hater," which is something akin to being "possessed by hatred." Keep in mind while reading the following how Rodger was essentially marinating in hatred toward everyone, including his family, for much of his life:
The reason why the will is so mysterious and secret is that in many respects it is a highly indeterminate force; there is in it an instinctive element over which we have little control and which drives us hither and thither on the turbulent waves of life often without our being able to claim that any conscious impulses are taking effect.from The Sun-Mystery in the Course of Human History (a lecture by Rudolf Steiner)
Two aspects of the will can be distinguished. — There is first of all the will which — unless we are out-and-out idlers — spurs us to activity from the time of waking until that of falling asleep.
The will that is working while we are asleep has to do with organic activity, inasmuch as organic processes, life-processes take place in us. These processes are essentially connected with the will.
But during waking activity too, that is to say when our will is in flow, life-processes are taking place. The will takes effect in the processes of internal metabolism. So that here again we can point to organic activity.
One kind of feeling surges upwards from the will that is connected with man's sleeping condition. This kind of feeling lives itself out in the antipathies — taking the word in the widest sense — unfolded by the human being. This is feeling which tends towards antipathy. Whereas the will that is involved in outer activity and therefore leads man into the external world, manifests in all those experiences of feeling which have in them the quality of sympathy.
If the life of soul is studied from this point of view, great illumination will be shed upon it. Waking life arouses in us sympathy with the surrounding world. Our antipathies really come from more unconscious realms. They press upwards from the sleeping will. It is as though our sympathies lie more on the surface, whereas antipathies rise up through them from unplumbed depths. Antipathies repel; antipathies draw us away from the surrounding world; we isolate ourselves, shut ourselves within our own being. Inwardly up-streaming antipathies are the antecedents of human egotism. THE GREATER A MAN'S EGOTISM, THE MORE STRONGLY IS THE ELEMENT OF ANTIPATHY WORKING IN HIM. HE WANTS TO ISOLATE HIMSELF, TO FEEL ENCLOSED WITHIN HIS OWN BEING.
IF A MAN UNFOLDS THE ELEMENT OF ANTIPATHY IN HIS LIFE OF FEELING SO STRONGLY THAT IT PLAYS INTO HIS WAKING LIFE, HIS WHOLE BEING IS PERMEATED WITH ANTIPATHY WHICH THEN LAYS HOLD OF HIS ASTRAL BODY; HIS ASTRAL BODY IS STEEPED IN THE ELEMENT OF ANTIPATHY; ANTIPATHY STREAMS OUT FROM HIM LIKE AN ABNORMAL AURA. IT MAY THEN HAPPEN THAT HE BEGINS TO FEEL ANTIPATHY TO PEOPLE TO WHOM HIS ATTITUDE WAS OTHERWISE NEUTRAL, OR INDEED EVEN TO THOSE HE LOVED OR KNEW INTIMATELY. THESE CONDITIONS CAN GIVE RISE TO PERSECUTION MANIA IN ALL ITS FORMS. When feelings of antipathy not to be explained by outer circumstances are experienced, this is due to the overflowing antipathies in the soul, that is to say, to AN ABNORMAL INTENSIFICATION OF THE ONE POLE IN THE LIFE OF SOUL WHICH FORCES ITS WAY UPWARDS OUT OF SLEEP. IF THIS ANTIPATHY GETS THE UPPER HAND IN A HUMAN BEING, HE BECOMES A WORLD-HATER, AND SUCH HATRED CAN ASSUME INCREDIBLE PROPORTIONS. The aim of all education and all social endeavor should be to prevent human beings from becoming world-haters.
But think of it. — If what surges up from the ocean-depths of man's being can promote overweening egotism when it gets the upper hand — and PERSECUTION MANIA IN ALL FORMS IS NOTHING BUT SUPERABUNDANT, EXCESSIVE EGOTISM — if all this is possible, what is there to be said of the inner will itself, which a beneficent creation conceals by means of sleep? We have no knowledge at all of how this inner will permeates our limbs, our entire organism. The most that can be said is that now and then, through strange dreams, something comes up into the consciousness of what lies in the will that works in our organism during sleep. WHAT LIVES IN THIS WILL LIES — AND RIGHTLY SO FOR THE ORDINARY CONSCIOUSNESS — ON YONDER SIDE OF THE THRESHOLD. HE WHO COMES TO KNOW IT, LEARNS TO KNOW THE FORCE BY WHICH THE HUMAN BEING CAN BE LED TO UTTERMOST EVIL. THE DEEPEST SECRET OF HUMAN LIFE IS THAT WE HAVE THE COUNTERBALANCE OF OUR ORGANIC ACTIVITY IN THE VERY FORCES WHICH, WERE THEY TO GAIN CONTROL IN THE CONSCIOUS LIFE OF A MAN, WOULD MAKE HIM INTO A CRIMINAL.
LET IT BE REMEMBERED THAT NOTHING IN THE WORLD IS IN ITSELF EVIL OR GOOD. WHAT IS RADICALLY EVIL WHEN IT BREAKS INTO OUR CONSCIOUS LIFE, IS THE COUNTERBALANCE FOR OUR SPENT LIFE-FORCES WHEN IT TAKE EFFECT IN ITS RIGHT PLACE, NAMELY AS THE REGULATOR OF ORGANIC ACTIVITY DURING THE SLEEPING STATE.
If you ask: What is the nature of the forces which make compensation for the spent life-forces? — the answer is: They are the forces of evil. Evil has its mission — and it is here. If this becomes known to anyone through spiritual training, it is for him as it was for earlier seers, something of which they said: Of its essential nature it is not lawful to speak, for sinful is the mouth that speaks of it, and sinful the ear that hears of it. — Nevertheless man must realize that life is a process fraught with danger and that evil lies in its deep foundations as a necessary force.
Other factors, such as Rodger's obsessive video-game playing, also contributed to his ultimate explosion. It seems to me by now that our society should have developed ways to identify those in danger of going down this path, but clearly that would displease those behind the veil who are behind this form of terrorism.