Alex / Isla
Maybe. They haven't killed anyone yet that we know of. I mean, Mom didn't say that they were in Beacon Hills to kill anyone; just that they might be here because of her. And then
Okay, so we have you, the twins, Derek, and Lydia who are marked. You're not all werewolves. You're all supernatural but who isn't practically but Stiley and I. What do you five have in common besides that?