And now they're at the quarry. Horatio's pawing through the sand, and Calleigh comes out to meet him. He notes the roaring of the jets with, "Natural sound cover." Calleigh adds, "Perfect place to keep your rifle on." Horatio whips out the high-tech binoculars and muses, "If I was [sic] him, where would I shoot from?" Calleigh says, "Well, he needs distance." Horatio cuts her off, "Because he's a long-range shooter, right?" Why does anyone else bother talking to Horatio? He so clearly knows everything about everything, so telling him something he already knows is a waste of everyone's time. Horatio notices a grate-like structure with a platform below it and, spiked into a mountain of coral nearby, a stake with a piece of orange tape tied to it. He hands Calleigh the binoculars and lays out the practice area for her: the sniper lies on the platform below the grate, and uses the orange tape as a flag to judge the wind. Horatio asks, "Where does the bullet end up?" Why, it ends up in a big mound of sand, and Horatio finds it unerringly. I bet he spends his days off finding needles in haystacks too.
While Horatio was off finding bullets, Calleigh was lifting prints off the wind marker, and now that she's back at the lab, she's got a match: Christopher Harwood, ex-Marine, special ops. Horatio's now nosing around his apartment -- there's a tiny area where Harwood's dog tags hang near a small American flag, and the rest of the apartment is sparse and clean, even the bonsai ringing the wall. Horatio comments, "His world and welcome to it." Calleigh concludes, "He's trying to control his environment, the way he wants to control us." Horatio then notices a cabinet filled with sniper data cards. Calleigh assesses the number (20,000) and comments, "He's recorded every shot he's ever taken." "Or planning to. This one was dated this morning," adds Horatio. We see the data card -- it reads at top "Sniper Data Card," logs the distance to the target (650 feet), the date, the elevation, temperature, light, velocity, direction, and other factors. Calleigh turns over the card and notices the black smudges. She and Horatio conclude that it's residue from a rooftop, and it could lead them to where he's planning on going.