Who do あなた think that holds the ナイフ in the Degrassi?

I'm sorry to say this, because I'm a HUGE Eli fan, hes the only character on Degrassi I really liked, but I think he is the one that holds the knife...Something inside of me is telling me its him, I wish its false. No I hope its false and that Im wrong, but after watching the episode and how things builds up...
Everyone thought its Fitz...but im not totally sure.

Who do あなた think that holds the knife?