Why is there always the need to blame something?

First read this blog about another homicidal student. And here is the article on the shooting.

Now when I was growing up Rock and Roll (specifically Jimi Hendrix and The Beatles) were blamed for Son of Sam's and Charles Manson's killing sprees. By the tome I was in college violent television and movies were the cause. Now it is video games. The fact is there is something WRONG with the people that do this. Outlawing violent TV or video games is NOT going to change it. Outlawing comic books or graphic novels or even fictional accounts are not going to change it. People like this find something to obcess about and as a result to justify their violence. YES, they need help, yes they need monitoring by their parents, keepers whoever. BUT stop blaming an outside source. Rant over