S: What are we looking for exactly?
G: Same thing we're always looking for evidence of a crime. __①__.
S: What about Nosebleed's missing girlfriend? You heard Brass. He got a hold of Alison Scott's parents in Canada. They said she never arrived. They had no idea she was even going to see them. __②__ Alison Scott's blood?
G: I don't see any evidence of that.
S: You don't think maybe he off'ed his girlfriend?
G: How many flies do you count in this room?
S: Fifteen ... give or take.
G: I counted four on my first walk-through.
S: Fly spots. Regurgitations.
G: Fresh. __④__.
S: Place is sealed, and they don't spontaneously generate.
G: So they're feeding on fresh blood. Could be a rodent, though, or bad garbage.
S: Or it could be something higher up the food chain like Alison Scott.
S: They can egress a space less than .001 centimeters. Behind you. Vent.