Deaths Coming to Mystic Falls

According to TV Guide expect deaths in Mystic Fall:

Do you have any Vampire Diaries scoop to help heal my broken heart over the Stefan-Elena breakup? — Helen

NATALIE: I don’t think this is going to help. There will be mass casualties in the midseason finale, including someone you’ve known since Season 1. My lips are sealed, but you can hit the comments with your guesses!