(..) in the wounds to run a DNA profile. It had to be the possum, right? The puncture wounds indicate something larger. - Hey, who's that? - A fraudulent used car salesman. Booth, meet Mr. Starret. I ran the standard eight nuclear markers for canids... What is that, like some kind of a bug? - Not a bug, Agent Booth. - Canis lupus familiaris. See how annoying that interrupting know it all used-car salesman thing can be? I mean, I'm sorry, what is a can-ass... Familiar-ass...? Domestic dog. Seth Elliot was killed by a dog with filed teeth. (..)