Calleigh: Guess what our substance is off the dead lawyer's shirt?
Ryan: Ah, well considering that it came from the undercarriage of his car which was pierced by his bone – which, incidentally, I'm really glad I wasn't there to see – my guess is, motor oil, 10W-30.
Calleigh: Try soybeans.
Ryan: Soybeans, like ethanol?
Calleigh: No, as in biodiesel. 100% biodiesel, in fact. It rare, so it should make our hit-and-run car easy to find.
Ryan: Well, it's nice to know that our killer cares about the environment.