"For one, we have no clue if you have a class 2 key-card or not. we never clarified that... However, you are quite the powerful man. I'm sure that if Greene trusted you, and you had the money. You could easily buy your way into a class 2 key-card. And how to prove he didn't rip it in half? He had no motive to. Plus the fact he has an airtight alibi, which can be reinforced if necessary. He was upstairs the entire time, and didn't go downstairs once. Furthermore, he would have no motive to destroy the contract until after the murder itself had occurred. And the best part is? Even if you did or didn't, it doesn't change the motive in the slightest. In-fact, it makes it even worse for you. If we find glove-prints on the note in itself, and since Greene and Kate- the only two other potential suspects. have airtight alibis, with one being upstairs at the time of the murder and the other not even having a level 2 key-card... That leaves only you with the MMO to do so."