TEXT: Matt: I'm starting to feel weird about this. This doesn't have anything to do with Allison, does it? Jackson: You have a little thing for Allison, Matt? A little - a little crush? Matt: No. Jackson: You think I'm gonna waste my time by doing something as - as unbelievably ordinary as making a s*x tape? Matt: Then what are you doing? Jackson: Documenting history. You'll get it back tomorrow. Matt: Son of a bitch. I knew you were lying. What the hell? Sheriff: So this kid's the real killer? Stiles: Yeah. Sheriff: No. Stiles: Yes! Sheriff: No. Stiles: Dad, come on. Everybody knows that the police look for ways to connect victims in a murder, okay? So all he had to do is, like, look through their transcripts and figure out which class they all had in common. Sheriff: Yeah, except for the fact that the rave promoter Kara wasn't in Harris's class. Stiles: All right, okay, you're right, sorry. Then I guess they dropped the charges against him? Sheriff: No, you know what? They're not dropping the charges. But that doesn't prove anything. Stiles: H - Sheriff: Scott, do you believe this? Stiles: Oh. Scott: It's really hard to explain how we know this, but you just gotta trust us. We know it's Matt. Stiles: Yeah, he took Harris's car, okay? Look, he knew that if a cop found tire tracks at one of the murders, and that if enough of the victims were in Harris's class, that they'd arrest him. Sheriff: All right, fine. I'll allow the remote possibility, but give me a motive. I mean, why would this kid want most of the 2006 swim team and its coach dead? Stiles: Isn't it obvious? Our swim team sucks! They haven't won in, like, six years. Okay, we don't have a motive yet. I mean, come on, does Harris? Sheriff: What do you want me to
SUMMARY:
Matt takes Scott, Stiles, Melissa and Sheriff Stilinski hostage. Gerard persuades Allison to exact revenge on Derek for bringing her mother to suicide. Matt reveals to Scott his reason for the murders: in 2006, all the victims were at a party at Isaac's house, where Matt had come to meet Isaac. They had thrown Matt in the pool and left him to drown despite him yelling that he can't swim. Melissa finally sees Scott as a werewolf. Gerard drowns Matt in the lake and becomes the Kanima's new master.