CSI: Crime Scene Investigation, Season 10

Sara:
DNA came up empty. There is no sign of either victim on Craig Mason's clothes or shoes. I did notice some scars on his arm, I think he was using the straight razor to cut himself.

Nick:
Hodges analyzed the trace that was found on the outside of the webcam house, and it was a match to Craig's corpse make-up.

Catherine:
So we can put him at the house, but not in the house.

Greg:
And we have nothing so far that puts him at the drug dealer's house.

Catherine:
Keep looking. His mother hasn't bailed him out yet.

Sara:
I don't think she's going to. She had that look in her eye, that maybe he did it. It is classic escalation from peeper to murderer.

Ray:
He was a teenager, there were attractive women coming in and out of that house all the time. It doesn't seem that sinister to me, besides he didn't murder the person he was peeping.

Nick:
Maybe he saw Ryan Lester as competition. Lester was intimate with Marnie, Craig could only watch her from a distance.

Ray:
Alright, say that's true. What about the second victim, Cliff Kilo?

Catherine:
Extensive criminal record. Mostly drug related.

Ray:
Why would Mason murder a drug dealer? Did he have drugs in his system?

Greg:
No. Tox panel came back clean. And it wasn't about money, I mean, there was cash all over the house.

Ray:
If Craig wasn't a ghoul, and his father hadn't come after Grissom, would you be considering him at all? (they all look at each other, saying 'No')