Then we go to commercials, because the time to get quippy to The Who passed thirty minutes ago, Gil.
When we get back, the usual array of police vehicles has arrived, and uniforms are swarming the scene. Brass heads over to the gravesite where Gil is working, and Warrick brushes away dirt to reveal a wedding band around one skeletal finger. Brass introduces the red herring portion of tonight's episode with, "Do you think this is the waitress Nick and Sara are looking for?" Gil points out that there's nothing gender-specific about the skeleton yet. Warrick sighs and breaks out the beleaguered expression to point out that there's neither tissue nor hair left, and the bones have probably been buried for at least three years. Gil sniffs deeply, and decrees that it's been more. Brass speaks for all of us when he asks, "You're kidding me, right?" Gil replies, "Well, the rule of thumb is, if the skull smells bad, it's usually under three years. This one smells like dirt." So that means...what? Don't just toss in an intriguing tidbit --tell us why this is the case. Does it mean that putrescine has a very specific half-life? Does it mean that all the byproducts of bodily decomposition that could smell noisome are gone? I miss the days when they bothered backing up the Fun Forensic Facts with...well, actual facts.
Just then, Warrick finds the murder weapon buried next to the pelvic bone. Too bad there's no way any DNA was preserved on the blade, what with it having been exposed to the elements for lo these many years. Brass says, "Doesn't fit. Walter was a fighter. He used his fists, not knives, you know?" Gil speaks for all of us this time when he points out, "Well, we haven't known him that long." Then he gives Brass a weird little So there. Feel free to mouth off after Walter's wrapped his hands around YOUR neck look. Whatever, Gil.
Cut to David looking at dem bones, dem bones, dem tidy bones, all neatly arranged on the table. We find out that we're looking at a female who, going by the pits in her pelvic bone, never gave birth. Warrick asks if David can pin down the race, and David replies, "Zygomatic bones retreat, slant back. Nasal opening's long and narrow." Warrick deduces that she's Caucasian. Again, it'd be nice to have some context to this, like by commenting on how they know she's not Asian or something. David tells us he's deduced the height at 5'4" based on the length of the femur, and she was probably in her late teens, early twenties. She was also strangled, something David figured out courtesy of the fractured hyoid bone. Warrick notes a few fractures -- to the zygomatic bone and maxilla, and to the left ulna. Those first two bones sound awfully familiar, what with Tony having had those bashed in. There were no tool marks on any of the bones. Warrick helpfully connects the dots for the slow viewers: "Maybe she was punched in the face and tried to shield herself."