Yep, everyone in the US of A is innocent. It's everything else that's to blame.

"It just COULDN'T be little Johnny, my baby would NEVER do anything like that on his own. He was influenced, that must be it. I mean, I saw him moping about for months, reading through a book called the Anarchist's Cookbook (I hope he makes us a meal from one of those recipes) and never coming out of his room. He DID ask me to get him some gasoline, soap, and Bisquick so maybe he's making a special project for Home Ec. What a special boy."

Um, ahem.

The ultimate blame falls on the people who pull the trigger. It's the simple thing that we've all been taught (or at least HOPE we were taught) from day 1: Right and Wrong.