Catherine: Found the victim in the bathroom, covered with a towel. Grissom: (to phone) Grissom. I hear your abduction case is now a serial murder. Jack Malone, FBI. Jack: Six years ago, in New York City, you took something that didn't belong to you. Jack: This boy was kidnapped from his babysitter's apartment six years ago. Jack: Why? LAS VEGAS CITY (STOCK) - MORNING]
[INT.
Plan: A: The FBI's Jack Malone; Q: Who joins forces with Grissom to track a serial killer? A: Anthony LaPaglia; Q: Who plays Jack Malone? A: a boy; Q: Who was kidnapped six years ago in New York? A: the profile; Q: What does the kidnapped boy match with a murder victim in Las Vegas? A: Where and Why; Q: What is the name of the episode that concludes the crossover with Without a Trace? Summary: The FBI's Jack Malone (Anthony LaPaglia) joins forces with Grissom to track a serial killer after a boy who was kidnapped six years ago in New York matches the profile of a murder victim in Las Vegas. This episode begins a crossover with Without a Trace that concludes on " Where and Why ".