Theo and Stiles in “Unfinished Business”

Theo

I know everything.

Stiles

[angrily] You don't know anything!

Theo

I was there! I was at the library. Malia found the book. She was texting us to see where you were. She said she left you at the library. I told her I was close. When I got there, I heard the scaffolding come down.

Stiles

You saw him?

Theo

Just the body. I watched you come out. I was gonna say something, but then I saw the cop car... And the body was gone. I don't know who took him. I only saw what you saw, and I didn't say anything because you didn't.