Horatio's got no time for love, baby. He's more interested in the cone-shaped deposit of gunshot residue, which was made when the bullet barked the rooftop as it exited the gun. We've now determined that this is the sniper location, despite the fact that it's sufficiently exposed so the sniper could be seen by a helicopter or a neighbor in a nearby building. Calleigh's only half-listening to Horatio, because she just found a scrap of burlap and gravel glued together. Horatio says, "Know what that is? That's from a homemade urban ghillie suit. That's what Marines use in the desert as camouflage." Calleigh also points out the presence of sand; the guy used a sand sock to stabilize his firearm while he shot. After it sinks in that they're dealing with someone who's extremely well-versed in the fine art of killing people via firearms, Calleigh opines, "This guy is scary." You think?

Back at the headquarters, Speedle comes in while Delko's on the phone with one of his three sisters. Delko's saying, "Look, Marisol, it's not my case. If you want Dad to call in sick or stay home from work, you should call him yourself. You know he's not going to listen -- I have to go. I have to go, I'll call you." Once Delko clicks off, Speedle asks what's up, and Delko reveals that Marisol is worried for the senior señor's safety. They chat about the case and how Speedle's doing on victimology, and Delko asks, "Any connection?" "None that are obvious," Speedle drawls. "Then that's a good time to look for the un-obvious," Delko helpfully points out. How very Zen of him. Speedle sighs,= and says irritably, "I'm aware of that. H says that to me all the time." Delko's grinning as he quips, "Great minds..." As if he'd know firsthand. Speedle's all, "You're unbelievable." Delko departs, just in time to run into a freshly mulleted Megan. When will the indignities end? They exchange some leaden dialogue which establishes only that the bullet dinged a mailbox on its way to killing someone's grandma. After Speedle -- whose look of suffering grows more acute with every scene -- whips up a computer simulation so that they can figure out what angle the shot came from if it was capable of nicking a mailbox on its way to the tourist, we hear Dire Straits telling to look at them yokels playing the guitar on the MTV. No, actually, we just see a computer simulation that causes flashbacks to 1985, and the key piece of information is the simulated ATM which would, in theory, offer security camera footage that could be used to pin down witnesses. Speedle sighs, "What do I have? Surveillance tapes from downtown." Well, that wasn't my first guess -- that would have been "an angry hole deep down inside." And my second guess was "another email reminding Warrick and Catherine that it sure was fun working with them, so if there's ever an opening in Vegas, feel free to mention it."