Derek and Argent in “Unfinished Business”

Derek

You know, if all of this is true... people are dead because of Stiles.

Argent

But, is it really Stiles? Remember, we've had this problem before.

Derek

But, we got lucky with Jackson. What happens when you don't get lucky?

Argent

I guess it depends on how much or how little of Stiles is left.