u/alltheleavesarebrown : Well that could be explained too by demonic possession or influence,but really don't need to be supernatural. Psychopath or sociopath is like alien looking exactly like human... If they are also irrational and are indeed satanists than even if they are not hearing satan - doing all what they would think and desire... Do you know basics about Dark Eldars from Warhammer 40k ?
u/alltheleavesarebrown : Well that could be explained too by demonic possession or influence,but really don't need to be supernatural. Psychopath or sociopath is like alien looking exactly like human... If they are also irrational and are indeed satanists than even if they are not hearing satan - doing all what they would think and desire... Do you know basics about Dark Eldars from Warhammer 40k ?