Back in the morgue, Megan snips a lock of Christina's hair, then proceeds to run a DNA analysis on it. I don't know which tests, exactly: all we see is a lot of micro-pipetting, some centrifuge action, then a printer spitting out results. Christina apparently had Prozac, Zoloft, 8-8-tetrahydrocannabinol, and Dilaudid in her system. Cut to Speedle and Megan looking at a giant overhead of the hair in question. Speedle is asking, "You ran a chemical profile on her hair?" Megan replies, "Mmm-hmm. Trace elements can generally be found in the follicles. Luckily, she was a brunette." Speedle cuts in: "Right. Dark hair stores higher concentrations of most contaminants." Megan tells him, "Nice thing about hair is, it grows at an even rate. Half an inch per month." Speedle notes that it gives him a nice timeline. We learn that Christina had been on antidepressants for about a year, and had smoked some pot six months ago. As I get distracted imagining how high schools will move on from urine samples to hair samples in a further erosion of civil liberties with regards to biological boundaries, Speedle's all, "And they say blondes have more fun." More fun than a deeply depressed woman on two types of SSRIs who tried to commit suicide by overdosing on Dilaudid? How can that be?

Next thing we know, Megan's dogging Horatio's heels, arguing that a suicide attempt is the only possible explanation -- "mass spec doesn't lie! She was the focus of an SEC investigation, she knew where all the bodies were buried, maybe she couldn't live with that." Ah, so now I know what kinds of tests Megan was doing. If only I could find out what sort of punctuation to use to indicate when Megan has decided to deliver her lines in a rapid monotone, I'd be so happy. Horatio's not buying the suicide attempt. Megan argues that the plane plunge is suicide -- "she tried to kill herself three months ago." "Tried and failed," corrects Caine. Megan makes another appeal for the plane jump as suicide. Horatio muses, "Most whistleblowers are women," thinking, no doubt, of Colleen Rowley (the FBI), Cynthia Ossias (California State Department of Insurance), Sherron Watkins (Enron), or Debbie Leibrock (Oracle). "I think she was planning to take the company down," he says. Or maybe Christina was merely following her conscience; according to Harvard sociologist Barbara Reskin, top-ranking women in a corporation are often acutely aware of having an outsider status, and "that not-quite-fitting-in frees women to make moral decisions that people who are locked into a network have a hard time making." So perhaps Alexx was onto something back there. Or perhaps I'm just running off at the mouth about a phenomenon that's intrigued me all year. Anyway -- back to the episode. Megan's doubting Christina's motives; she says, "Her testimony died with her."