theri Death on Teen Wolf Season 3 Episode 3 Who Will It Be ?

Teen Wolf season three has become one of the most traumatizing shows on TV, and you know? We just can't get enough. We move into episode three tonight on MTV and while we have a ton of unanswered questions at this point, what we do know is that someone on the show is going to die, and it's going to happen in tonight's episode. Here's a quick look at what you can expect: 

Wow -- so after multiple innocent deaths, it looks like the Scott and Derek might be forced to look for help in an unlikely place, or actually from an unlikely helper -- Allison's dad. In the last episode we saw Scott and Derek nearly die, and we saw Lydia having probably those most horrifying nightmare of all time. So back to the question at hand -- who will die in tonight's episode "Fireflies?" Most people seem to think it's a toss-up between Heather (the girl Stiles almost hooked up with in the last episode) and Erica (who looked already dead in Derek's arms last week). Of course there's also the option of Boyd or Derek's sister Cora who just reappeared -- both of whom we could see potentially getting axed. The next question is -- who will do the killing? Will it be Derek, Scott or maybe even Stiles forced to kill someone else for survival?