First, here is a video:
The Devil Made Me Do It.
I do find it interesting how fast they diagnosed him as schizo. They also did the Muslim who murdered Theo Van gogh as well as the Muslim who broke in to a police station a couple of years ago and stabbed several police officers, one of them a woman. All these Muslim attackers managed to get diagnosed with schizophrenia a great deal faster than, as I mentioned already, Anders Breivik, but also faster than anyone else I know who actually is suffering from that malady.
I might add, that the symptoms people experience seem to reflect the culture with which they are inculcated. For example, a Catholic might view themselves as sinful and be a threat to themselves, while a Jewish one might be trying to calculate pi ad-nauseum to silence the voice of his mother in his head.
While I have certainly not read a study on this, nor do I know if one exists, (one certainly should) intuitively and from personal experience with friends who suffer this most difficult illness, it seems that symptoms are very much a product of whatever belief set one already has or has been raised with.
Having said that,
I would make the case that even if these Dutch Moroccan men were all certifiably schizophrenic as claimed, that in all cases it was their Islamic beliefs that motivated and inspired their actions and not their illness. While cases can be found of individual people in the west murdering specific individuals because of their own paranoid delusions, the assassin of John Lennon and Canada’s well known TV personality, Brian Smith for example, I would be willing to bet that the number of non-Muslim diagnosed schizophrenics who actually randomly killed people was staggeringly lower than the number of Muslims even including the ones claimed to be schizo, who did.
Does it not make sense that a faith that insists that the only way to get in to a perpetual priapistic paradise, a heavenly bordello is to assassinate unbelievers in jihad would be fertile ground for people with delusional tendencies? It was not the disease that stabbed these three people, one of them at least may yet be fatal, it was a man fueled by Islamic delusions of hate and reward for it.