While this is going on, Nicky's managed to slide into the Camaro for a look around. Catherine comes over, and they comment on the lack of a wallet anywhere on Eric's person; Nicky has a flash of intuition, reasoning that sitting on a wallet for four hours would be uncomfortable, and therefore it's likely that Kevin took it out. He finds the wallet in the beverage caddy. Now why can't Nicky display these thinking skills around Gil, Warrick, or Sara? Does he have performance anxiety? Is he self-sabotaging? Are they so collectively brilliant that anyone else's IQ falls when in their presence? It's a mystery to me. Anyway, once Catherine gets the wallet, they flip it open, and there are many, many pictures of the girlfriend in the wallet. Nicky recognizes the girl from the accident scene.
Cut to Nicky and Catherine at the girlfriend's bedside. Catherine's all, "He said he wanted to surprise you." The girl nods weakly, then says, "He did. In Barstow, at the rest stop. It was supposed to be a girls' weekend." We go to flashback, where we learn that Eric is a mite bit possessive, needy, and insecure. The woman expresses remorse for having yelled at the man who explicitly ignored her plea for space and, as a result of deciding to follow her around, ended up dead as a result. Catherine and Nicky move on to solve the mystery of the DNR. The girl explains, "It's because he was a doctor. He saw it every day, people hooked up to machines, waiting to die. He swore he wouldn't want anyone he loved to go through that. And if his life was at stake, he would make the hard decision so no one else would have to." They all fall silent, thinking, "Hunh. The recapper called this one ten minutes ago."
Back at the Labitrail, Gil is reviewing photos of the asphalt, looking for the groove that would indicate the snapped rod and thus back up Warrick's timeline and probable sequence of events. He looks giddy to be doing so. Meanwhile, a greatly subdued Liam is doodling at his desk while Sara paces back and forth, waiting for results on those swabs she took. Liam says, with some small amount of irritation and residual embarrassment, "I thought I told you I'd page you with the results." Sara replies that she prefers to wait. She stops pacing long enough to get Liam's attention and say seriously, "You're really good at what you do." Liam rolls his eyes a little and searches for a response, as Sara's watching his face intently, but before either one of them can say anything, there's a beep and her results spit out of a printer. Sara looks down, then says to Liam, "Sabotage," before watching her go. Liam looks thoughtful, and not too unhappy. Either he's finally realized the only person holding his inexperience in the field against him is him, or he's realized that he doesn't need to be a CSI in the field to have his colleagues' respect, or he's decided he's happiest being a lab tech. Any one of those three works, really.