After that rather dull denouement, Jason's bundled into the back of a squad car, where he begins making excuses. "I never slept!" I believe it was Calleigh who wasn't buying it as an excuse back when everyone instantly suspected Stephanie of postpartum psychosis; let's hope she's as harsh here. Jason carries on some more about how the burden of his family drove him mad. At this point, I'm so disgusted with the heavy-handed manipulation throughout this episode (when in doubt, arouse the audience's pity and fear by showing a cute child in trouble) and asinine judgments flung toward Stephanie, I end up snarling at the screen, "It's called birth control, or it's called put up and shut up." I mean, really. What was he expecting from four kids -- the next Von Trapp Family Singers? After the car bearing the shifty and evil Jason drives off, Sevilla asks, "Did he just confess?" Horatio bursts her bubble with, "He was laying the groundwork for his defense." "Insanity," Sevilla guesses. Horatio nods, "Two-pronged: I didn't know what I was doing, and I certainly didn't know it was wrong." Sevilla thinks Jason might be onto something. Determined to make sure it doesn't, Horatio sets out to prove her wrong. After a few moments alone with Jason's shirt and a micropipette, we find out how: there's ammonia on Jason's shirt, and a log of him calling home shortly before driving back. Those two things establish that he had removed all his prints from the gun cabinet by means of the ammonia, then called Stephanie to check on the cabinet -- thus getting her to plant her prints. That sort of premeditation undercuts the I-suddenly-snapped defense.
We learn in the last scene that an undeterred Jason Caplin is claiming postpartum psychosis by proxy. I almost wish we did have the legal counterpart to this show, because I'd love to see a lawyer try to make the argument that postpartum psychosis -- typically occurring in the context of an underlying psychiatric disorder like bipolar affective disorder, schizophrenia, or major depression, and quite possibly triggered by fluctuating estrogen and progesterone levels -- is somehow contagious. In any event, Speedle's showing Horatio the headline with his usual flair. Horatio comments, "First he frames his wife for murder, and then he co-opts her illness." Note here: Stephanie Caplin may have had postpartum depression, but barring any symptoms like severe hallucinations or delusions taking place within the immediate weeks after giving birth -- symptoms that were never mentioned once during the duration of this episode -- she was not psychotic. It pisses me off -- like, really, irritation on a galactic scale -- that the entire episode has gone by without one CSI actively attempting to define postpartum psychosis for the audience, much less trying to contest or discredit the idea that Stephanie was, in fact, suffering from postpartum psychosis. Way to spread misinformation about something that seriously affects one in one thousand women, guys. I hope you're proud.