DO HORROR MOVIES CAUSE VIOLENCE/PSYCHOPATHIC TENDENCIES?

[sral]

Bags questioned how many chicken-fucking, dog shit eating, sodomy, torture scat porn I films I could watch before the inevitable killing of my wife surfaces. So I'm down to play:

Can anyone name any horror movie that has been shown to have been a contributing factor in any act of violence?

Or deserving of being withheld from General viewing for fear of being a possible catalyst for such an act?

I cannot think of any.

But here are a few well documented examples of media that played a major part in the delusions of some of history's most abhorrent crimes...

Ian Brady (the moors murder) constantly listened to the comedy radio show "The Goons", with Spike Milligan and Peter Sellers. Should that be banned for his crimes?
Charles Manson listened intently to The Beatles Album "Helter Skelter". Ban it?
And last but far from least, a book that has shown to have beyond any doubt to have been responsible for mass murder, torture, rape, and genocide throughout the centuries...The Bible!
Are Christians monsters? Are music lovers monsters?
Then why should people who enjoy the horror genre be classed as such!