Just then, the shooting starts, and there's much gunplay. The SWAT team eventually takes the complex where Boy Blue is stashing his team of independent contractors, and they break into the apartment, where a bunch of unamused working girls put up their hands with a lot of eye-rolling. Hagen and Calleigh come in, and Calleigh demands, "Where'd he go?" Treynice is understandably irritated: "He didn't pay me! Cheap-assed bald bastard." Calleigh demands more angrily, "Where did Hank go?" Treynice replies, "To put a cap in some bitch cop. Blonde bitch. Uh, Britney? Better check this out." Treynice -- whom I also like based on her sassitude, and whom I'd like to see teamed up with Boy Blue as the CSI:M informants in Season Two for relief from the endless humorless brooding -- opens a door, and we see written in a dark liquid, "31." I have no idea what that is; if it's blood, there's no explanation for how Hank got enough of it to write large numerals on the wall. Anyway, that number's the code for a murder, so it's like Hank is sending her a message or something. I guess killing Janet The Lawyer wasn't effective as a communications strategy. Hagen takes it as a direct threat. Calleigh, for whom the bullet chambers are always half-full, prefers to think of it as trace evidence.