Rusty: That's a good lead.
Isabel: I know. We found a hair.
Rusty: A hair, wow.
Isabel: It's at the lab. So hopefully by noon tomorrow, we'll find out his DNA, What kind of conditioner he uses, If he streaks his hair, if he has dandruff, everything.
As Isabel expounds on the evidence they found, Rusty sits in the bathroom looking with concern at his conditioners and shampoos.