Meanwhile, in another scene redolent with Freudian imagery, Calleigh's confirming all the ballistics reports by firing the Colt .45 Horatio found. We get a super-duper close-up of the bullet sliding out of the barrel -- nope, nothing at all to set off a Freudian's symbolism alarm -- and the resulting striations on the bullet shell confirm that Pedro's in possession of a gun that shot a lot of bullets.

Cut to a shot of Horatio, perfectly color-coordinated and framed by the elevator doors. As he begins loping down the hall, Calleigh comes by to recap the last scene for him, leaving out all the intimations of symbolism. Calleigh asks, "Does this mean we have the guy?" Horatio's musing, so he replies absently, "You tell me. You make a run for freedom. Along the way, you shoot your sister. Then you try to save her life." Calleigh speaks for many science geeks everywhere as she says, "This is why I like ballistics. It's an exact science."

Speedle's finally finished with Megan's mission and is now deciphering the waterlogged note as Horatio hovers. He explains, "The software digitizes the diluted pattern, and the algorithm extrapolates a reversal probability, estimating an image of the original writing." It's official: Speedle is my favorite thing about this show. Not only does he get into the science, he also looks like he's been pulling overtime, unlike the rest of these blow-dried clowns. We find out that the writing originally read, "NM 28-30." Horatio's like, "Does it crack the code?" Speedle replies, "Yeah, it just gives you the puzzle; it doesn't solve it." Horatio tells Speedle he's got to crack the code, then takes off for a coffee brood.