Cut to a zillion police cars speeding towards the school. It's begun raining, and Horatio sprints through the rain and up the stairs to the school. He and Principal Roland make their introductions. We learn that Jeff's MIA, but there's a SWAT team on the way. Horatio says he wants everyone out of the building. The principal says, "I don't want to create a panic," which is, of course, the cue for all hell to break loose. Horatio runs down the hall bellowing, "I need everybody to leave the building right now!" The kids run out. Horatio -- alone, with no backup and no communication with anyone to indicate what he's about to do -- runs into the building and towards the faint popping sounds of gunfire. Within moments, we're seeing Jeff shooting up the joint as students scatter. Naturally, Jeff is wearing a black trench coat, because anything that can remind us of an actual high school massacre only makes the scene more interesting, right? Jeff spends all the ammo in his rifle, drops that and pulls out a handgun from his coat, and prepares to shoot some more when Horatio -- who, come to think of it, doesn't look a whole lot different in his dark ensemble -- comes at him with his gun drawn. Horatio tells him to drop the gun, and Jeff's all, "You have no idea what I've done." Horatio says, "That's not true, Jeff. I know about the cemetery, and I know about Mark. Jeff, we can put a stop to this right now if you want to." As Horatio's been talking, he's been walking closer too. Jeff doesn't agree. Horatio tells Jeff, "I want you to think about your dad." He does not add, "Who you've just sent back to jail." Jeff's another one with the Daddy-didn't-love-me complex, and Horatio quickly disabuses him of that notion, and this time he does add, "He's back in jail for you." "Lies!" Jeff insists. Horatio presses forward: "No. He took the gun rap. Two more years inside, for you." Jeff lowers the gun a little bit and asks if that's true. Horatio assures him it is, and quickly recaps how it is we've all gotten to this point, in far fewer words than I did. Whatever progress he's made in calming Jeff down is undone as Jeff notices the SWAT team marching up behind Horatio. Jeff decides to take the dramatic way out; he instructs, "Tell him I said thanks," then attempts to shoot himself in the head. However, Horatio's superhuman reflexes enable him to quickly tackle Jeff and prevent a tragic teen suicide. Horatio has Jeff on the floor, Jeff's gun goes sliding away, and within a blink of the eye, Horatio's on his feet with his gun drawn, commanding Jeff not to move. He then disarms the boy, and Jeff's all, "I could have killed you." An angry viewership demands to know what stopped him. Horatio's all, "I know. But you didn't. We're clear." He steps aside so Tripp can berate the kid for a while while the SWAT team looks down the barrels of their guns at him.
Back at CSI Central, Speedle and Alexx are having lunch together, and Alexx shares Chuck's tox screens; he's three times over the legal limit for ethanol. She's guessing vodka, since there's no smell. Speedle wants to know if excessive alcohol would impede sexual performance. In the audience, men and women are all nodding vehemently. Alexx says, "Oh, honey, that amount of alcohol would impede an elephant's sexual performance." I'd like to see the grant application of the zoologist who plans on conducting experiments to find out exactly how much alcohol it takes before the bull elephant's forced to slur, "I swear, this has never happened before." And then I want to see the look on the grad students that zoologist will have doing the dirty work. Anyway, Alexx suddenly puts two and two together and asks, "Catch her in a lie?" Speedle says he has to look at the evidence, then finishes his sandwich so he can do just that. He finds small indentations on either side of Chuck's face-spit in the pillow, then zooms in on the photos so he can see what those indentations are. Why, they would be the charms that were on Rena's fingernails lo those many minutes ago.