Sorry I haven't updated in so long! I've just been drifting away from TDI series. I decided just to cancel this story, because I want it to be updated, but I don't have enough time to write out a whole story. Again, sorry. This murderer is actually Cody!
I just wanted to tell you that. Since I don't have enough time to write a full chapter, I'll give you the ending:
Noah, Owen, and Geoff find out that Cody is the killer after they can't find his body. Cody kills everyone else and takes the three down into the basement, where he ties them up. He talks to them for a while, saying why he did what he did. Then, he shoots the three, picks up the phone. He dials 911 before shooting himself.
Yes, this is how it ends!