So I'm making up the vegan part.

Gateway Pundit reports the whole bloody mess. This probably shouldn't make me laugh, but how much do you want to bet that the MoveOn.org activist is a hippie vegan? He probably wouldn't eat meat. But human fingers? Yum!

Moe Lane says it's the zombies:

The Moveon.org zombie apparently then left. At a walk. And none of his Moveon.org colleagues stopped him. And then they themselves later walked through the crime scene.

Again: wait, what?

Dude. That's messed up.