Horatio gathers everyone around the car so they can put together how the copycat worked: advertise for a young, Latina housekeeper by offering top salary in a Spanish-only newspaper, using a disposable cell phone as the only point of contact. Then you select the victim by meeting with would-be candidates publicly; this way, the killer can assess their looks (they have to be pretty), and the victim thinks she's being safe. Once she's hired, the killer followed her in his (or her) vehicle, pulled her over, and shot her with the gun procured from the first murder. We'll return to how said gun is procured later; at this moment, we're working on the crime scene, namely how this copycat would have planted fibers, pushed the car into the canal, and thrown the gun in for the CSIs to find. Now that the brain trust has come up with that scenario, everyone who thinks they can identify who the copycat is can stop watching and spend those twenty minutes doing something else to redeem their lives; the rest of us can watch as Horatio and the Bob-White Club grope toward the final answer.
They start in the morgue, where we get our second Alexx sighting of the night. She tells Horatio about the wound track (left-to-right) and whips out her ubiquitous metal rod to demonstrate how the wound track in Bonita's head does not line up with the hole shot through the driver's side window. Horatio, naturally, knows why: "The shot that killed Bonita Cruz did not go through this window. Bang to the temple, bang to the window." Delko demonstrates his grasp of mathematics with, "There were two shots." Horatio confirms this. Calleigh, meanwhile, has just pulled another 9-mm round from the upholstery; she theorizes, "It means the killer copied everything down to the smallest detail, including shooting out the driver's side window." Sweet baby Jeebus, is the back of that jacket she's wearing shaped by a self-tying sash? Was there not enough going on with that jacket without adding that to the mix? Speedle is not distracted by the coat of many errors; he points out, "You can't plan down to the detail because events are random. They can never be perfectly recreated." Delko explains the discrepancy between Bonita's head wound and the window by telling us, "One thing [the killer] didn't count on was Bonita rolling down her window." Horatio brings us from back from the question of how Bonita was killed -- which, ostensibly, is the question they ought to be interested in -- to get into the far more squishy area of motive: "We know of two people who directly benefit from the existence of Bonita Cruz, right?" Speedle thinks, "Lorenzo Escalante. The guy has motive. He has connections. So he hires a guy." Calleigh adds, "It doesn't have to be a guy -- women commit seventeen percent of all homicides, and being connected to a murder conviction could hurt your political career." Speedle thinks it's out of character for Mercedes; Delko, who's tapped into the word on the street, says, "What I hear, she used to run with a pretty rough crowd." Horatio's all, "She campaigned on it. But we still have to put her outside of this car." Cue Mercedes's friend from the block, Sevilla. She tells Horatio, "I have someone you should meet."