TEXT: [EXT. VARIOUS LAS VEGAS CITY LIGHTS (STOCK) - NIGHT] (We start with the Las Vegas city lights, then rise up to look over the horizon.) FLASH TO: [EXT. COUNTRY HOUSE -- NIGHT] (A two-story farmhouse with a windmill outside. The lights are on inside. Through the windows, we see movement.) [INT. FINCH RESIDENCE - KITCHEN -- NIGHT (Addie Finch is watching a television cooking show while doing the dishes. The reception isn't good and she whacks the set with frustration.) Addie Finch: (mutters) Piece of crap. (She goes back to doing the dishes. She hears the door open.) Addie Finch: Jay? Is that you? (There's no answer. She continues wiping the dishes.) (Someone comes up from behind Addie and stabs her in the back with a knife.) (She gasps.) (The man stabs her in the chest and she falls to the kitchen floor. She gasps for breath as the bloodied knife drips on her.) Catherine: (V.O.) CSI processed the knife and found blood from four different sources, -- FLASH TO: [INT. COURTROOM - DAY] (Catherine is on the stand. A photo of the knife and ruler is on the monitor.) Catherine: -- three of which were intermingled together on the blade. One matched Addie Finch, the victim. (Catherine changes the image on the monitor to a close-up of the knife blade.) Catherine: The other two were also female. And based on the number of DNA markers they have in common, they're either sisters or mother and daughter. They are not related to Addie Finch. And both remain unidentified. ADA Jasmine Davis: And the fourth DNA source? Catherine: When I disassembled the knife, I found blood on the tang, which is the steel area under the handle. ADA Jasmine Davis: Were you able to identify this DNA? Catherine: It was
SUMMARY:
Catherine testifies in a murder trial in which a man is accused of murdering his own mother three years ago, but the suspect is found not guilty. Catherine, however, believes he did commit the crime and that he may also have killed two other people, so she and Nick set out to find the other victims. Catherine's probe leads to a small Nevada town where an elderly woman and her daughter were fatally stabbed and shot three years earlier. Back at the lab, Grissom prepares to leave on a four-week sabbatical.