Horatio's off and hovering over Calleigh, who's cracking, "These are not your daddy's bullets. Most bullets have striations, but these don't." That's because they're Sabot bullets encased in plastic. Calleigh says, "Specialty bullets. Not illegal, but also not widely available." And then we see a closeup of the bullet exiting the gun and shedding its plastic skin as it goes. Horatio explains, "It's encased in plastic to protect the bullet, making it impossible to match up the specific weapon, right?" Calleigh takes the ammunition choice as a sign of foresight and concludes, "[The sniper] does not want to get caught." Horatio concludes, "Maybe he was just beginning. Three dead before the morning rush hour is over. Who knows what the day will bring us?"
Why, it brings us something that's ostensibly a B-plot! Delko is wandering onto a tour bus, where the beloved grandmother from the first scene was sitting before a bullet shattered the window and killed her, if the broken glass and bloodstain are anything to go by. Delko tells us, "She was shot at nine-fifteen when the driver stopped for a bathroom break around Second, near Langley." This catches Horatio's attention, and he says, "Wait a minute: did you just say Second and Langley? We've got a fourth victim." Delko recaps how the shooting happened -- the driver heard the screams and a shot, got the bus to the hospital -- then asks if poor Grandma died as a result of some sloppy shooting. Horatio snorts, "Not this guy."
And now it's time for a video break: Speedle's busy doing the victimology voodoo while a danceable beat plays in the background. As is typical for these scenes, we get the idea that time has elapsed while we see nothing of value.