THE NIGHT STALKER. Richard Ramirez. Case Background.
"You do not understand me. I do not expect you to. You are not capable of it. I am beyond your experience. I am beyond good and evil. Legions of the night, night breed, repeat not the errors of night prowler and show no mercy. I will be avenged. Lucifer dwells within us all."
A few theories may be used to explain criminal behaviour