Add to that how you only need one psycho to make the headlines for the next year, until the next copycat is inspired. But that's another, although related, subject.
Not a false comparison in the slightest. I was also quite entertained by the original Texas Chainsaw Massacre and Friday the 13th.
The person that commits these acts bears sole responsibility for them. Mommies that didn’t hug them enough or violence in TV is not a crutch or substitute for responsibility.