In Dexter's doughnut shop, Greene is sucking on Jamie's neck, and kids, don't make me take back my stamp of approval here. Greene then tells her that he'd like to show Dexter his video game to find out what a real blood-spatter analyst thinks of it, but he's intimidated to do so. Jamie tells him that Dexter is really just a big softie, so he should go for it. If there's anyone on this show whose advice ever works out, I'm hard pressed to think of who it might be.
Some female cop runs into Deb in the hallway and hands her the dead call girl's personal effects, and of course LaGuerta just happens to be nearby to overhear this and give Deb some shit about it, and then they head into the briefing, which LaGuerta is running this week so she can have her one scene, and also so she can snot at Deb about how she's pitching in so Deb can concentrate on "other cases." Deb, however, evenly acknowledges that she's the boss (and this is only one example this episode of how great a job Saint Therapist is doing with her) and steps to the side so LaGuerta can...ask everyone to bring her up to speed. Obviously, she has no idea of anything that's been going on, so after about twenty seconds Deb steps forward and asks about the blood in the jars they found (forgot to mention that before, but we've seen that it belongs to Colin Hanks). Dexter confirms that it's Colin Hanks's type, and also matches some of the blood used in the Bowls of Wrath, and Deb speculates that it might also have been the blood that Colin Hanks made Holly Benson drink. Not really sure why this is super-important for her to bring up, but she is showing up LaGuerta so I'll allow it, and also this prompts realization to dawn on Dexter: Holly is the mistake Colin Hanks intends to rectify. After using not-Google to track down Holly's address, he finds Greene trying to get his attention with an offer of doughnuts, but Dexter blows right past him. Rude!