Keith calls the pharmacy to find out who picked up the prescription, but we don't hear the answer. As soon as Keith gets off, Landry enters, futzing with his cell phone. He produces a bug, and asks whether Keith planted it in the phone. Keith denies it, and says that he's sure that Veronica didn't have anything to do with it either. Landry notes that Veronica has a lot of initiative, and tells Keith how Veronica probed his Kiss Kiss Bang Bang alibi. I like how this is the second time Landry has seen right through a Mars trick -- it's nice to see some worthy adversaries here. Keith smiles that Veronica has a lot of initiative, but Landry points out that she also has a lot of promise, and doesn't need to be "slumming it in a PI office the rest of her life." Landry's pretty invested in Veronica here, have you noticed? He then, rather hotly, details his evening of December 10th -- got to the Grand at 7:30, watched the Clippers game until Mindy showed up at 8:15, conducted the "usual business of an affair," then the movie, and then sleep. He says that there's nothing for Keith to find, so he should stop looking. I hate to disagree with someone so smart, Landry, but if the "usual business" of your affair lasted six hours, I think Keith would at least be interested in finding your secret.
Keith returns to the sheriff's station and tells Sacks that he needs to see Lamb, but Sacks says he looks kind of busy. Keith: "Now that's something I gotta see." Who put a snarky nickel in Keith today? I like it.
Cut to Lamb's office: "So if I'm hearing you right, you're calling me a dumb-ass." Keith manages not to take that bait; he's just wowing me left and right here. He does try to impress upon Lamb that Dean Ed's death was a murder, and tells him what we knew (which is that the Dean was out of Xanax), and also what we didn't know, which is that the autopsy showed that Dean's blood had traces of Xanax in it, and that the Dean's prescription was picked up on the day in question by his wife. This actually gets through to Lamb, and he summons Sacks and tells him to call Hearst and see if they still have any of the Dean's stuff -- phone, computer, etc. -- that they can dust for prints. Also, he tells Sacks to bring Mindy in. Sacks scurries off as Keith and Lamb look at each other all, "Well, this is new." I hope it's not too much of a spoiler to tell you it's not going to last. Credits.