So the boys go to see Sofia's publisher, who tells them she had recently put Sofia's book "on the back burner." Publisher-lady doesn't think that could have driven Sofia to suicide, though it did piss off Bradley, who believed that Sofia was being sabotaged by "Kate Westwood, of all people." Scoff! Of all people! Wait -- who's Kate Westwood? Publisher-lady tells us she's a popular indie actress who recently wrote a children's book.
Kate, whom the detectives visit next, turns out to be stiff and monotone and unsure what to do with her arms -- the indie audiences love that in an actress! She's an old friend of Sofia's, and she says the Camerons were held back by their resentment. Lupo guesses that Brad and Sofia were "burned" by Kate's publishing deal -- ah, yes, because nothing confers legitimacy on a film actor like writing a children's book. With his uncanny nose for relevant minutiae, Lupo checks out some galleys and notes that the book, Panda Bear Gets a Haircut (hee), is dedicated "to my Lucas." Kate says Lucas was her son, who died three months ago. Then she changes the subject back to the Camerons and their resentment, and how it "kept Bradley and Sophia from opening their hearts to their own destinies." O-key.
Bradley is another one of those people, so common in the L&O-iverse, who don't see any reason to stop working while they talk to police officers who are investigating a murder, but Bernard calls him on that shit and makes him shut off the noisy power drill he's operating. Thank you, Bernard. Then the Nard-Dog goes on to insinuate hanky-panky, as is standard in these investigations, however flimsy a red herring it may be. Was Bradley involved with Kate? Brad says no, and offers an alibi for the murder -- he heard fire trucks outside the window after Kate left and saw some neighbors across the alley arguing. Lupes promises to check that out, but wants to hear more about the Camerons' problems with Kate. The camera follows Bradley as he walks away, revealing a studio full of more hilarious "sculpture," including one piece with an old-school deep-sea-diver's mask affixed to it. Bradley says he doesn't know whom he can trust; Lupo gets in a dig at his new partner: "I don't know about him, but you can certainly trust me." Oooh, burn! Here comes the good part: Brad says Kate is a member of the "Systemotics" cult, and that they did a "purification ritual" that killed baby Lucas. Kate told Sofia, who wanted to go to the police, but Kate refused. Now Bradley is convinced the Systemotics people killed Sofia, and he offers to dig up some notes Sofia made for an article on the topic of Scientology, I mean, Systemotics.