You were sitting with the others around the table (???? idk man), because Star was found dead. You guys had spent over an hour and 15 minutes, (yes I'm using the ACTUAL video time) talking about when Star was murdered and it was getting nowhere.

Dipper: "What about-"

Gaz interrupted him.

Gaz: "That's it, I can't listen to this anymore. Leave it to my geeky brother's best friend to overcomplicate a problem this badly."

Dipper: "Huh!?!"

Gaz: "In this enormous tangent of discussion, you've managed to not only fail to reveal the obvious, but also implicate me in the process. You're even more pathetic than I imagined."

Dipper stayed quiet after that, clearly hurt by what Gaz said.

Gaz: "Let's step back for a moment and remember what this whole conversation was about, shall we? I've been sitting here hoping that someone would bring this up. But of course, I have to be the one to state the obvious."

Gaz crossed her arms.

Gaz: "At this point, how Star got there and why Cartman didn't never saw them barely matters. It's about the MonoKaller itself. If we find the owner of this unclaimed phone, we find our culprit. It's as simple as that."

Dib: "Then... What are you saying, Gaz?"

Gaz: "You guys are seriously bad at this. Just have everyone pull out their phones! Who doesn't have an iBrand on hand is the killer. Even if there's more than one person without a phone, we've at least narrowed the list of suspects down."

Gaz paused pulling out her phone.

Gaz: "Here's mine. Now, if you didn't kill Star, I suggest you show us your MonoKallers too."

Everyone except Mable and Jenny pulled out their MonoKallers.

Dipper: "MABLE!?"

Blossom: "JENNY!?"

Jenny: "I-I must've dropped mine!!"

Mable: "I left mine upstairs!!"