Thanks for the video. I think he has been psychotic for some time with the gathering of his arsenal. He planned it in his own little world and probably can't believe that he went through with it. Now he is slightly awakening from his crime for the moment. I still think he is in a psychosis, and will not come back to reality until he takes an antipsychotic, such as Abilify or Geodon. I googled psychosis to clarify what I mean.

Psychosis:

A severe mental disorder in which thought and emotions are so impaired that contact is lost with external reality.


I know that he was crazy, because I have been crazy several times myself. Of course I never have killed anyone, but I know I would never have a gun in the house because of my mental illness. When sick like that you are in a whole different world.